SPEC CPU(R)2026 Integer Speed Result GIGA-BYTE TECHNOLOGY CO., LTD. R2A3-T40-AAV1 (3.20 GHz AmpereOneM A192-32M) Test Sponsor: Ampere Computing, Inc. CPU2026 License: 6412 Test date: Feb-2026 Test sponsor: Ampere Computing, Inc. Hardware availability: Nov-2025 Tested by: Ampere Computing, Inc. Software availability: Oct-2025 Base Base Base Base Base Base Base Peak Peak Peak Peak Peak Peak Peak Benchmarks Threads RunTime Ratio Energy MaxPwr AvgPwr ERatio Threads RunTime Ratio Energy MaxPwr AvgPwr ERatio ---------------- ------- ------- ------ ------ ------ ------ ------ ------- ------- ------ ------ ------ ------ ------ 801.xz_s 192 281 2.10 76.9 566 274 1.08 S 192 281 2.10 78.1 565 278 1.06 S 801.xz_s 192 285 2.08 79.3 573 278 1.05 * 192 281 2.10 78.1 565 278 1.06 * 801.xz_s 192 286 2.07 79.3 572 278 1.04 S 192 279 2.12 77.4 567 278 1.07 S 807.ntest_s 192 91.2 12.5 43.4 540 476 5.34 * 192 90.1 12.6 43.2 541 479 5.37 S 807.ntest_s 192 91.3 12.5 43.7 539 479 5.31 S 192 90.1 12.7 43.4 542 482 5.35 * 807.ntest_s 192 91.1 12.5 43.8 539 480 5.30 S 192 90.1 12.7 42.9 545 476 5.41 S 817.flac_s 192 536 3.24 131 276 245 1.42 S 192 536 3.24 131 276 245 1.42 S 817.flac_s 192 538 3.23 131 274 244 1.42 S 192 538 3.23 131 274 244 1.42 S 817.flac_s 192 537 3.23 131 275 244 1.42 * 192 537 3.23 131 275 244 1.42 * 821.gcc_s 192 118 17.6 77.5 708 658 5.49 S 192 104 19.9 68.5 701 658 6.21 S 821.gcc_s 192 118 17.6 78.2 708 663 5.44 S 192 104 19.9 68.1 701 654 6.24 S 821.gcc_s 192 118 17.6 77.8 709 661 5.47 * 192 104 19.9 68.1 703 653 6.25 * 823.llvm_s 192 96.7 14.6 60.3 664 624 4.85 S 192 90.3 15.6 55.1 644 611 5.31 S 823.llvm_s 192 97.0 14.6 60.6 658 626 4.83 S 192 90.2 15.6 55.1 650 611 5.31 S 823.llvm_s 192 96.9 14.6 61.3 676 633 4.77 * 192 90.2 15.6 55.5 643 615 5.28 * 827.cppcheck_s 192 131 8.55 64.3 767 492 3.78 S 192 128 8.76 58.4 716 458 4.16 S 827.cppcheck_s 192 131 8.52 64.5 775 491 3.77 * 192 128 8.73 58.7 725 458 4.14 * 827.cppcheck_s 192 131 8.52 64.7 773 493 3.75 S 192 130 8.63 58.9 721 454 4.13 S 829.abc_s 192 502 1.65 119 249 236 0.587 S 192 490 1.70 116 246 236 0.602 S 829.abc_s 192 500 1.66 118 248 236 0.590 S 192 492 1.69 116 247 237 0.599 * 829.abc_s 192 501 1.66 118 247 236 0.589 * 192 494 1.68 117 249 236 0.597 S 834.vpr_s 192 328 2.91 77.1 241 235 1.04 * 192 315 3.03 74.1 241 235 1.08 S 834.vpr_s 192 328 2.91 77.0 240 235 1.04 S 192 315 3.03 74.2 241 235 1.08 * 834.vpr_s 192 329 2.90 77.2 240 235 1.04 S 192 317 3.01 74.4 242 235 1.08 S 835.gem5_s 192 301 3.78 70.2 236 233 1.38 S 192 294 3.87 68.8 237 234 1.40 * 835.gem5_s 192 301 3.79 70.2 236 233 1.38 S 192 295 3.86 68.9 237 234 1.40 S 835.gem5_s 192 301 3.79 70.3 237 234 1.37 * 192 294 3.87 68.8 237 234 1.41 S 838.diamond_s 192 87.9 11.4 40.8 586 464 4.91 S 192 87.8 11.4 40.5 567 461 4.95 * 838.diamond_s 192 88.7 11.3 41.1 584 463 4.87 S 192 87.6 11.4 40.4 561 462 4.95 S 838.diamond_s 192 88.4 11.3 40.9 595 463 4.89 * 192 88.0 11.4 40.9 559 465 4.89 S 846.minizinc_s 192 284 2.36 68.0 245 240 0.923 S 192 287 2.33 68.8 245 239 0.912 S 846.minizinc_s 192 288 2.32 69.2 246 240 0.906 S 192 278 2.41 66.7 244 240 0.940 S 846.minizinc_s 192 285 2.35 68.2 245 240 0.920 * 192 282 2.38 67.5 245 240 0.929 * 853.ns3_s 192 244 4.72 57.2 239 234 1.73 S 192 210 5.48 49.4 240 235 2.01 S 853.ns3_s 192 245 4.71 57.3 240 234 1.73 S 192 211 5.48 49.5 241 235 2.00 * 853.ns3_s 192 244 4.72 57.3 239 234 1.73 * 192 213 5.42 49.9 239 235 1.99 S 854.graph500_s 192 199 3.07 95.2 606 478 1.36 * 192 199 3.07 95.2 606 478 1.36 * 854.graph500_s 192 199 3.07 95.2 612 479 1.36 S 192 199 3.07 95.2 612 479 1.36 S 854.graph500_s 192 213 2.86 102 609 476 1.28 S 192 213 2.86 102 609 476 1.28 S ============================================================================================================================ 801.xz_s 192 285 2.08 79.3 573 278 1.05 * 192 281 2.10 78.1 565 278 1.06 * 807.ntest_s 192 91.2 12.5 43.4 540 476 5.34 * 192 90.1 12.7 43.4 542 482 5.35 * 817.flac_s 192 537 3.23 131 275 244 1.42 * 192 537 3.23 131 275 244 1.42 * 821.gcc_s 192 118 17.6 77.8 709 661 5.47 * 192 104 19.9 68.1 703 653 6.25 * 823.llvm_s 192 96.9 14.6 61.3 676 633 4.77 * 192 90.2 15.6 55.5 643 615 5.28 * 827.cppcheck_s 192 131 8.52 64.5 775 491 3.77 * 192 128 8.73 58.7 725 458 4.14 * 829.abc_s 192 501 1.66 118 247 236 0.589 * 192 492 1.69 116 247 237 0.599 * 834.vpr_s 192 328 2.91 77.1 241 235 1.04 * 192 315 3.03 74.2 241 235 1.08 * 835.gem5_s 192 301 3.79 70.3 237 234 1.37 * 192 294 3.87 68.8 237 234 1.40 * 838.diamond_s 192 88.4 11.3 40.9 595 463 4.89 * 192 87.8 11.4 40.5 567 461 4.95 * 846.minizinc_s 192 285 2.35 68.2 245 240 0.920 * 192 282 2.38 67.5 245 240 0.929 * 853.ns3_s 192 244 4.72 57.3 239 234 1.73 * 192 211 5.48 49.5 241 235 2.00 * 854.graph500_s 192 199 3.07 95.2 606 478 1.36 * 192 199 3.07 95.2 606 478 1.36 * SPECspeed(R)2026_int_energy_base 1.97 SPECspeed(R)2026_int_base 5.02 SPECspeed(R)2026_int_energy_peak 2.07 SPECspeed(R)2026_int_peak 5.21 HARDWARE -------- CPU Name: AmpereOneM A192-32M Max MHz: 3200 Nominal: 3200 Enabled: 192 cores, 1 chip Orderable: 1 chip Cache L1: 16 KB I + 64 KB D on chip per core L2: 2 MB I+D on chip per core L3: 64 MB I+D on chip per chip Other: None Memory: 768 GB (12 x 64 GB 2Rx4 PC5-5600B-R) Storage: 1 x 960 GB Samsung M.2 (MZ1L2960HCJR-00A07) Cooling: Air Other: None SOFTWARE -------- OS: Fedora Linux 43 (Server Edition) 6.17.5-200.64K_PS.fc42.aarch64 Compiler: C/C++/Fortran: Version 15.2.0 of GCC Compiler Category: Community Firmware: Version 5.4.5.1 released Oct-2025 File System: xfs System State: Run level 3 (multi-user) Base Pointers: 64-bit Peak Pointers: 64-bit Other: Jemalloc memory allocator library v5.3.0 Power Management: OS CPU governor set to "performance" POWER ----- Max. Power (W): 775.3 Idle Power (W): 203.65 Min. Temperature (C): 20.50 Elevation (m): 60 Line Standard: 120 V / 60 Hz / 1 phase / 2 wire Provisioning: Line powered POWER SETTINGS -------------- Management FW: Version 4.06 of MegaRAC BMC Memory Mode: Normal POWER-RELEVANT HARDWARE ----------------------- Power Supply: 1 x 1600 W (non-redundant) Details: 1+1 1600W 80 PLUS Titanium redundant power supplies AC Power Supply Backplane: PCIe Gen5 x4 Other Storage: Embedded SATA Controller Storage Model #s: R2A3-T40-AAV1 NICs Installed: 1 x Mellanox Technologies MT27710 Family @ 25 GbE (2 ports ethernet) NICs Enabled (FW/OS): 2 / 1 NICs Connected/Speed: 1 @ 25 Gbps Other HW Model #s: Fan configuration is 4 x 80x80x38mm POWER ANALYZER -------------- Power Analyzer: cpu-reference-ptd:8000 Hardware Vendor: Yokogawa Model: WT-310 Serial Number: T11733285 Input Connection: Serial over USB Metrology Institute: NIST Calibration By: Yokogawa USA Calibration Label: T126622 Calibration Date: 13-Aug-2025 PTDaemon(R) Version: 1.11.3 (0c074d7d; 2025-10-15) Setup Description: Directly Connected to PSU 1 Current Ranges Used: 10A Voltage Range Used: 150V TEMPERATURE METER ----------------- Temperature Meter: cpu-reference-ptd:9000 Hardware Vendor: PCSensor Model: USB9097+DS18B20 Serial Number: N/A Input Connection: USB PTDaemon Version: 1.11.3 (0c074d7d; 2025-10-15) Setup Description: In front of SUT front panel primary air inlet Compiler Notes -------------- Binaries were compiled on a system with 1x AmpereOneM CPU chip + 768 GB Memory using Fedora Linux 42 Operating System Notes ---------------------- 'ulimit -s unlimited' was used to set environment stack size Set dirty_ratio=8 to limit dirty cache to 8% of memory echo 8 | sudo tee /proc/sys/vm/dirty_ratio Set swappiness=1 to swap only if necessary echo 1 | sudo tee /proc/sys/vm/swappiness Set zone_reclaim_mode=1 to free local node memory and avoid remote memory echo 1 | sudo tee /proc/sys/vm/zone_reclaim_mode Set drop_caches=3 to reset caches before invoking runcpu echo 3 | sudo tee /proc/sys/vm/drop_caches Set numa_balancing=0 to disable automatic numa balancing echo 0 | sudo tee /proc/sys/kernel/numa_balancing Switch off all ktune and tuned settings sudo tuned-adm off Transparent huge pages set to 'never' sudo bash -c "echo never > /sys/kernel/mm/transparent_hugepage/enabled" runcpu command invoked through numactl i.e. numactl --interleave=all runcpu Environment Variables Notes --------------------------- Environment variables set by runcpu before the start of the run: LD_LIBRARY_PATH = "/home/amptest/workspace/sir2026_pkg_verify/ampere_spec2026/spec2026/jem alloc/install/lib:/home/amptest/workspace/sir2026_pkg_verify/ampere_spec 2026/spec2026/gcc/install/lib64:/home/amptest/ampere_spec2026/spec2026/j emalloc/install/lib:/home/amptest/ampere_spec2026/spec2026/gcc/install/l ib64" MALLOC_CONF = "thp:never,dirty_decay_ms:-1,muzzy_decay_ms:-1,retain:true" OMP_STACKSIZE = "120M" General Notes ------------- Jemalloc v5.3.0 is available via https://github.com/jemalloc/jemalloc/releases/download/5.3.0/jemalloc-5.3.0.tar.bz2 It was built on Fedora Linux 42 using Version 15.2.0 of GCC The configure options are "--with-lg-page=16" for building libjemalloc.so, and "--with-lg-quantum=3 --with-lg-page=16" for building libjemalloc_ext.so Tuned MALLOC_CONF in terms of https://jemalloc.net/jemalloc.3.html NA: The test sponsor attests, as of date of publication, that CVE-2017-5754 (Meltdown) is mitigated in the system as tested and documented. Yes: The test sponsor attests, as of date of publication, that CVE-2017-5753 (Spectre variant 1) is mitigated in the system as tested and documented. Yes: The test sponsor attests, as of date of publication, that CVE-2017-5715 (Spectre variant 2) is mitigated in the system as tested and documented. Platform Notes -------------- Note: lscpu is not able to detect the SLC. SLC is defined at https://developer.arm.com/documentation/100180/0103/bry1436285730281 Sysinfo program /home/amptest/workspace/sir2026_pkg_verify/ampere_spec2026/spec2026/bin/sysinfo Rev: 069f95da7e7f5d81b2ce48a82150e54f running on ampereone Thu Feb 5 14:24:59 2026 SUT (System Under Test) info as seen by some common utilities. ------------------------------------------------------------ Table of contents ------------------------------------------------------------ 1. uname -srvm 2. w 3. Username 4. ulimit -a 5. sysinfo process ancestry 6. /proc/cpuinfo 7. lscpu 8. numactl --hardware 9. /proc/meminfo 10. Systemd service manager version: systemd 258 (258-1.fc43) 11. Services, from systemctl list-unit-files 12. Linux kernel boot-time arguments, from /proc/cmdline 13. cpupower frequency-info 14. tuned-adm active 15. sysctl 16. /sys/kernel/mm/transparent_hugepage 17. /sys/kernel/mm/transparent_hugepage/khugepaged 18. OS release 19. Disk information 20. /sys/devices/virtual/dmi/id 21. dmidecode 22. BIOS ------------------------------------------------------------ ------------------------------------------------------------ 1. uname -srvm Linux 6.17.5-200.64K_PS.fc42.aarch64 #1 SMP PREEMPT_DYNAMIC Wed Jan 21 08:54:52 EST 2026 aarch64 ------------------------------------------------------------ 2. w 14:24:59 up 33 min, 2 users, load average: 103.15, 34.21, 12.08 USER TTY LOGIN@ IDLE JCPU PCPU WHAT amptest 13:52 32:55 0.00s 0.02s sshd-session: amptest [priv] amptest 13:52 32:55 0.00s 0.21s /usr/lib/systemd/systemd --user ------------------------------------------------------------ 3. Username From environment variable $USER: root From the command 'logname': amptest ------------------------------------------------------------ 4. ulimit -a real-time non-blocking time (microseconds, -R) unlimited core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 784608 max locked memory (kbytes, -l) 8192 max memory size (kbytes, -m) unlimited open files (-n) 524288 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) unlimited cpu time (seconds, -t) unlimited max user processes (-u) 784608 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited ------------------------------------------------------------ 5. sysinfo process ancestry /usr/lib/systemd/systemd --switched-root --system --deserialize=57 sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups sshd-session: amptest [priv] sshd-session: amptest@notty java -jar remoting.jar -workDir /home/amptest -jar-cache /home/amptest/remoting/jarCache /bin/bash /tmp/jenkins8000437629987399314.sh sudo -S -E UPDATE_UTIL=false /home/amptest/util/jenkins/speccpu_pkg_verify.sh GreenSIR2026/without_report/spec2026_intspeed_gcc15_Ofast_static_ampereonem_power_111.tgz /bin/bash /home/amptest/util/jenkins/speccpu_pkg_verify.sh GreenSIR2026/without_report/spec2026_intspeed_gcc15_Ofast_static_ampereonem_power_111.tgz /bin/bash /home/amptest/workspace/sir2026_pkg_verify/ampere_spec2026/run_spec2026.sh --iterations 3 --nobuild --action run --threads 192 --reportable --tune=base,peak intspeed runcpu --config=ampere_aarch64 --define numasize=192 --define gcc_dir=/home/amptest/ampere_spec2026/spec2026/gcc/install --define llvm_dir=/home/amptest/ampere_spec2026/spec2026/llvm/install --define jemalloc_dir=/home/amptest/ampere_spec2026/spec2026/jemalloc/install --define glibc_dir=/ --iterations 3 --nobuild --action run --threads 192 --reportable --tune=base,peak intspeed runcpu --configfile ampere_aarch64 --define numasize=192 --define gcc_dir=/home/amptest/ampere_spec2026/spec2026/gcc/install --define llvm_dir=/home/amptest/ampere_spec2026/spec2026/llvm/install --define jemalloc_dir=/home/amptest/ampere_spec2026/spec2026/jemalloc/install --define glibc_dir=/ --iterations 3 --nobuild --action run --threads 192 --reportable --tune base,peak --runmode speed --tune base:peak --size refspeed intspeed --nopreenv --note-preenv --logfile $SPEC/tmp/CPU2026.003/templogs/preenv.intspeed.003.0.log --lognum 003.0 --from_runcpu 2 specperl $SPEC/bin/sysinfo -f $SPEC = /home/amptest/workspace/sir2026_pkg_verify/ampere_spec2026/spec2026 ------------------------------------------------------------ 6. /proc/cpuinfo CPU implementer : 0xc0 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xac4 CPU revision : 0 Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 sm4 asimddp sha512 asimdfhm dit uscat ilrcpc flagm ssbs sb paca pacg dcpodp flagm2 frint i8mm bf16 rng bti ecv ------------------------------------------------------------ 7. lscpu From lscpu from util-linux 2.41.3: Architecture: aarch64 CPU op-mode(s): 64-bit Byte Order: Little Endian CPU(s): 192 On-line CPU(s) list: 0-191 Vendor ID: Ampere BIOS Vendor ID: Ampere (R) Model name: Ampere-1a BIOS Model name: AmpereOne (R) A192-32M CPU @ 3.2GHz BIOS CPU family: 257 Model: 0 Thread(s) per core: 1 Core(s) per socket: 192 Socket(s): 1 Stepping: 0x0 Frequency boost: disabled CPU(s) scaling MHz: 100% CPU max MHz: 3200.0000 CPU min MHz: 1000.0000 BogoMIPS: 2000.00 Flags: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 sm4 asimddp sha512 asimdfhm dit uscat ilrcpc flagm ssbs sb paca pacg dcpodp flagm2 frint i8mm bf16 rng bti ecv L1d cache: 12 MiB (192 instances) L1i cache: 3 MiB (192 instances) L2 cache: 384 MiB (192 instances) NUMA node(s): 1 NUMA node0 CPU(s): 0-191 Vulnerability Gather data sampling: Not affected Vulnerability Ghostwrite: Not affected Vulnerability Indirect target selection: Not affected Vulnerability Itlb multihit: Not affected Vulnerability L1tf: Not affected Vulnerability Mds: Not affected Vulnerability Meltdown: Not affected Vulnerability Mmio stale data: Not affected Vulnerability Old microcode: Not affected Vulnerability Reg file data sampling: Not affected Vulnerability Retbleed: Not affected Vulnerability Spec rstack overflow: Not affected Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl Vulnerability Spectre v1: Mitigation; __user pointer sanitization Vulnerability Spectre v2: Not affected Vulnerability Srbds: Not affected Vulnerability Tsa: Not affected Vulnerability Tsx async abort: Not affected Vulnerability Vmscape: Not affected From lscpu --cache: NAME ONE-SIZE ALL-SIZE WAYS TYPE LEVEL SETS PHY-LINE COHERENCY-SIZE L1d 64K 12M 4 Data 1 256 64 L1i 16K 3M 4 Instruction 1 64 64 L2 2M 384M 8 Unified 2 4096 64 ------------------------------------------------------------ 8. numactl --hardware NOTE: a numactl 'node' might or might not correspond to a physical chip. available: 1 nodes (0) node 0 cpus: 0-191 node 0 size: 784583 MB node 0 free: 776092 MB node distances: node 0 0: 10 ------------------------------------------------------------ 9. /proc/meminfo MemTotal: 803413888 kB 'who -r' did not return a run level ------------------------------------------------------------ 10. Systemd service manager version: systemd 258 (258-1.fc43) Default Target Status multi-user running ------------------------------------------------------------ 11. Services, from systemctl list-unit-files STATE UNIT FILES enabled ModemManager NetworkManager NetworkManager-dispatcher abrt-journal-core abrt-oops abrt-vmcore abrt-xorg abrtd atd audit-rules auditd authselect-apply-changes bluetooth crond dbus-broker fips-crypto-policy-overlay firewalld getty@ irqbalance iscsi-onboot iscsi-starter lm_sensors lvm2-monitor mdmonitor multipathd rpmdb-rebuild rsyslog rtkit-daemon selinux-autorelabel-mark smartd sshd sssd systemd-boot-clear-sysfail systemd-confext systemd-resolved systemd-sysext systemd-tpm2-clear tuned udisks2 upower enabled-runtime systemd-remount-fs disabled NetworkManager-wait-online abrt-pstoreoops arp-ethers blk-availability canberra-system-bootup canberra-system-shutdown canberra-system-shutdown-reboot chrony-wait chronyd chronyd-restricted console-getty containerd cpupower debug-shell dnf-system-upgrade dnf5-offline-transaction dnsmasq docker fancontrol fsidd gssproxy iscsi-init iscsid iscsiuio kvm_stat lastlog2-import low-memory-monitor lvm-devices-import man-db-restart-cache-update netavark-dhcp-proxy netavark-firewalld-reload netavark-nftables-reload nfs-blkmap nfs-server nftables nis-domainname nvmefc-boot-connections nvmf-autoconnect openhpid podman podman-auto-update podman-clean-transient podman-kube@ podman-restart psacct rmtfs rpcbind selinux-check-proper-disable ssh-host-keys-migration sshd-keygen@ svnserve systemd-boot-check-no-failures systemd-boot-update systemd-homed systemd-homed-activate systemd-homed-firstboot systemd-network-generator systemd-oomd systemd-pcrlock-file-system systemd-pcrlock-firmware-code systemd-pcrlock-firmware-config systemd-pcrlock-machine-id systemd-pcrlock-make-policy systemd-pcrlock-secureboot-authority systemd-pcrlock-secureboot-policy systemd-pstore systemd-time-wait-sync systemd-timesyncd systemd-udev-load-credentials systemd-userdb-load-credentials wpa_supplicant zvbid indirect iscsi pcscd serial-getty@ sshd@ sssd-autofs sssd-kcm sssd-nss sssd-pac sssd-pam sssd-ssh sssd-sudo systemd-sysupdate systemd-sysupdate-reboot systemd-userdbd ------------------------------------------------------------ 12. Linux kernel boot-time arguments, from /proc/cmdline BOOT_IMAGE=(hd5,gpt2)/vmlinuz-6.17.5-200.64K_PS.fc42.aarch64 root=/dev/mapper/fedora-root ro rd.lvm.lv=fedora/root nokaslr kaslr.disabled=1 ------------------------------------------------------------ 13. cpupower frequency-info analyzing CPU 23: current policy: frequency should be within 1000 MHz and 3.20 GHz. The governor "performance" may decide which speed to use within this range. ------------------------------------------------------------ 14. tuned-adm active No current active profile. ------------------------------------------------------------ 15. sysctl kernel.numa_balancing 0 kernel.randomize_va_space 2 vm.compaction_proactiveness 20 vm.dirty_background_bytes 0 vm.dirty_background_ratio 10 vm.dirty_bytes 0 vm.dirty_expire_centisecs 3000 vm.dirty_ratio 8 vm.dirty_writeback_centisecs 500 vm.dirtytime_expire_seconds 43200 vm.extfrag_threshold 500 vm.min_unmapped_ratio 1 vm.nr_hugepages 0 vm.nr_hugepages_mempolicy 0 vm.nr_overcommit_hugepages 0 vm.swappiness 1 vm.watermark_boost_factor 15000 vm.watermark_scale_factor 10 vm.zone_reclaim_mode 1 ------------------------------------------------------------ 16. /sys/kernel/mm/transparent_hugepage defrag always defer defer+madvise madvise [never] enabled always madvise [never] hpage_pmd_size 536870912 shmem_enabled always within_size advise [never] deny force ------------------------------------------------------------ 17. /sys/kernel/mm/transparent_hugepage/khugepaged alloc_sleep_millisecs 60000 defrag 1 max_ptes_none 8191 max_ptes_shared 4096 max_ptes_swap 1024 pages_to_scan 65536 scan_sleep_millisecs 10000 ------------------------------------------------------------ 18. OS release From /etc/*-release /etc/*-version os-release Fedora Linux 43 (Server Edition) fedora-release Fedora release 43 (Forty Three) redhat-release Fedora release 43 (Forty Three) system-release Fedora release 43 (Forty Three) ------------------------------------------------------------ 19. Disk information SPEC is set to: /home/amptest/workspace/sir2026_pkg_verify/ampere_spec2026/spec2026 Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/fedora-root xfs 891G 261G 631G 30% / ------------------------------------------------------------ 20. /sys/devices/virtual/dmi/id Vendor: GIGACOMPUTING Product: R2A3-T40-AAV1 Product Family: R2A3-T40-AAV1 Serial: 0000000000000000000000000001 ------------------------------------------------------------ 21. dmidecode Additional information from dmidecode 3.6 follows. WARNING: Use caution when you interpret this section. The 'dmidecode' program reads system data which is "intended to allow hardware to be accurately determined", but the intent may not be met, as there are frequent changes to hardware, firmware, and the "DMTF SMBIOS" standard. Memory: 12x Micron Technology MTC40F2046S1RC56BD2 MLCC 64 GB 2 rank 5600 ------------------------------------------------------------ 22. BIOS (This section combines info from /sys/devices and dmidecode.) BIOS Vendor: Ampere Computing LLC BIOS Version: 5.4.5.1 BIOS Date: 10/22/2025 BIOS Revision: 5.37 Compiler Version Notes ---------------------- ============================================================================== C | 854.graph500_s(base, peak) ------------------------------------------------------------------------------ gcc (GCC) 15.2.0 Copyright (C) 2025 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ------------------------------------------------------------------------------ ============================================================================== C++ | 807.ntest_s(base, peak) 827.cppcheck_s(base, peak) 853.ns3_s(base, | peak) ------------------------------------------------------------------------------ g++ (GCC) 15.2.0 Copyright (C) 2025 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ------------------------------------------------------------------------------ ============================================================================== C++, C | 801.xz_s(base pass 0, peak pass 1, peak pass 2) 817.flac_s(base pass | 0, peak pass 0) 821.gcc_s(base pass 0, peak pass 1, peak pass 2) | 823.llvm_s(base pass 0, peak pass 1, peak pass 2) 829.abc_s(base | pass 0, peak pass 1, peak pass 2) 834.vpr_s(base pass 0, peak pass | 1, peak pass 2) 835.gem5_s(base pass 0, peak pass 1, peak pass 2) | 838.diamond_s(base pass 0, peak pass 1, peak pass 2) | 846.minizinc_s(base pass 0, peak pass 1, peak pass 2) ------------------------------------------------------------------------------ g++ (GCC) 15.2.0 Copyright (C) 2025 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ------------------------------------------------------------------------------ ============================================================================== C++, C | 801.xz_s(base pass 0, peak pass 1, peak pass 2) 817.flac_s(base pass | 0, peak pass 0) 821.gcc_s(base pass 0, peak pass 1, peak pass 2) | 823.llvm_s(base pass 0, peak pass 1, peak pass 2) 829.abc_s(base | pass 0, peak pass 1, peak pass 2) 834.vpr_s(base pass 0, peak pass | 1, peak pass 2) 835.gem5_s(base pass 0, peak pass 1, peak pass 2) | 838.diamond_s(base pass 0, peak pass 1, peak pass 2) | 846.minizinc_s(base pass 0, peak pass 1, peak pass 2) ------------------------------------------------------------------------------ gcc (GCC) 15.2.0 Copyright (C) 2025 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ------------------------------------------------------------------------------ ============================================================================== C++, C | 801.xz_s(base pass 0, peak pass 1, peak pass 2) 817.flac_s(base pass | 0, peak pass 0) 821.gcc_s(base pass 0, peak pass 1, peak pass 2) | 823.llvm_s(base pass 0, peak pass 1, peak pass 2) 829.abc_s(base | pass 0, peak pass 1, peak pass 2) 834.vpr_s(base pass 0, peak pass | 1, peak pass 2) 835.gem5_s(base pass 0, peak pass 1, peak pass 2) | 838.diamond_s(base pass 0, peak pass 1, peak pass 2) | 846.minizinc_s(base pass 0, peak pass 1, peak pass 2) ------------------------------------------------------------------------------ g++ (GCC) 15.2.0 Copyright (C) 2025 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ------------------------------------------------------------------------------ ============================================================================== C++, C | 801.xz_s(base pass 0, peak pass 1, peak pass 2) 817.flac_s(base pass | 0, peak pass 0) 821.gcc_s(base pass 0, peak pass 1, peak pass 2) | 823.llvm_s(base pass 0, peak pass 1, peak pass 2) 829.abc_s(base | pass 0, peak pass 1, peak pass 2) 834.vpr_s(base pass 0, peak pass | 1, peak pass 2) 835.gem5_s(base pass 0, peak pass 1, peak pass 2) | 838.diamond_s(base pass 0, peak pass 1, peak pass 2) | 846.minizinc_s(base pass 0, peak pass 1, peak pass 2) ------------------------------------------------------------------------------ gcc (GCC) 15.2.0 Copyright (C) 2025 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ------------------------------------------------------------------------------ Base Compiler Invocation ------------------------ C benchmarks: gcc C++ benchmarks: g++ Benchmarks using both C and C++: g++ gcc Base Portability Flags ---------------------- 834.vpr_s: -fno-finite-math-only 835.gem5_s: -fno-finite-math-only Base Optimization Flags ----------------------- C benchmarks: -mabi=lp64 -std=c18 -Wl,-allow-multiple-definition -static -fwhole-program -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib64 -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib -L/home/amptest/ampere_spec2026/spec2026/jemalloc/install/lib -g -Ofast -mcpu=ampere1a -flto=32 -funroll-loops --param early-inlining-insns=96 --param max-inline-insns-auto=64 --param inline-unit-growth=96 -fopenmp -DSPEC_OPENMP -u malloc -ljemalloc C++ benchmarks: 807.ntest_s: -mabi=lp64 -std=c++17 -Wl,-allow-multiple-definition -static -fwhole-program -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib64 -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib -L/home/amptest/ampere_spec2026/spec2026/jemalloc/install/lib -g -Ofast -mcpu=ampere1a -flto=32 -funroll-loops --param early-inlining-insns=256 --param max-inline-insns-auto=128 --param inline-unit-growth=256 -ffinite-loops -fopenmp -DSPEC_OPENMP -u malloc -ljemalloc_ext 827.cppcheck_s: -mabi=lp64 -std=c++17 -Wl,-allow-multiple-definition -static -fwhole-program -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib64 -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib -L/home/amptest/ampere_spec2026/spec2026/jemalloc/install/lib -g -Ofast -mcpu=ampere1a -flto=32 -funroll-loops --param early-inlining-insns=256 --param max-inline-insns-auto=128 --param inline-unit-growth=256 -ffinite-loops -pthread -u malloc -ljemalloc_ext 853.ns3_s: -mabi=lp64 -std=c++17 -Wl,-allow-multiple-definition -static -fwhole-program -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib64 -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib -L/home/amptest/ampere_spec2026/spec2026/jemalloc/install/lib -g -Ofast -mcpu=ampere1a -flto=32 -funroll-loops --param early-inlining-insns=256 --param max-inline-insns-auto=128 --param inline-unit-growth=256 -ffinite-loops -u malloc -ljemalloc_ext Benchmarks using both C and C++: 801.xz_s: -mabi=lp64 -std=c++17 -std=c18 -Wl,-allow-multiple-definition -static -fwhole-program -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib64 -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib -L/home/amptest/ampere_spec2026/spec2026/jemalloc/install/lib -g -Ofast -mcpu=ampere1a -flto=32 -funroll-loops --param early-inlining-insns=96 --param max-inline-insns-auto=64 --param inline-unit-growth=96 --param early-inlining-insns=256 --param max-inline-insns-auto=128 --param inline-unit-growth=256 -ffinite-loops -pthread -u malloc -ljemalloc_ext 817.flac_s: Same as 801.xz_s 821.gcc_s: -mabi=lp64 -std=c++17 -std=c18 -Wl,-allow-multiple-definition -static -fwhole-program -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib64 -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib -L/home/amptest/ampere_spec2026/spec2026/jemalloc/install/lib -g -Ofast -mcpu=ampere1a -flto=32 -funroll-loops --param early-inlining-insns=96 --param max-inline-insns-auto=64 --param inline-unit-growth=96 --param early-inlining-insns=256 --param max-inline-insns-auto=128 --param inline-unit-growth=256 -ffinite-loops -u malloc -ljemalloc_ext 823.llvm_s: Same as 801.xz_s 829.abc_s: Same as 821.gcc_s 834.vpr_s: Same as 821.gcc_s 835.gem5_s: Same as 801.xz_s 838.diamond_s: Same as 801.xz_s 846.minizinc_s: Same as 801.xz_s Base Other Flags ---------------- C benchmarks: -w -Wl,-Map,mapfile C++ benchmarks: -Wl,-Map,mapfile Benchmarks using both C and C++: -w -Wl,-Map,mapfile Peak Compiler Invocation ------------------------ C benchmarks: gcc C++ benchmarks: g++ Benchmarks using both C and C++: g++ gcc Peak Portability Flags ---------------------- 834.vpr_s: -fno-finite-math-only 835.gem5_s: -fno-finite-math-only Peak Optimization Flags ----------------------- C benchmarks: 854.graph500_s: basepeak = yes C++ benchmarks: 807.ntest_s: -mabi=lp64 -std=c++17 -Wl,-allow-multiple-definition -static -fwhole-program -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib64 -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib -L/home/amptest/ampere_spec2026/spec2026/jemalloc/install/lib -fprofile-generate -fprofile-use -fprofile-partial-training -g -Ofast -mcpu=ampere1a -flto=32 -funroll-loops --param early-inlining-insns=256 --param max-inline-insns-auto=128 --param inline-unit-growth=256 -ffinite-loops -fopenmp -DSPEC_OPENMP -u malloc -ljemalloc_ext 827.cppcheck_s: -mabi=lp64 -std=c++17 -Wl,-allow-multiple-definition -static -fwhole-program -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib64 -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib -L/home/amptest/ampere_spec2026/spec2026/jemalloc/install/lib -fprofile-generate -fprofile-use -fprofile-partial-training -g -Ofast -mcpu=ampere1a -flto=32 -funroll-loops --param early-inlining-insns=256 --param max-inline-insns-auto=128 --param inline-unit-growth=256 -ffinite-loops -pthread -u malloc -ljemalloc_ext 853.ns3_s: -mabi=lp64 -std=c++17 -Wl,-allow-multiple-definition -static -fwhole-program -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib64 -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib -L/home/amptest/ampere_spec2026/spec2026/jemalloc/install/lib -fprofile-generate -fprofile-use -fprofile-partial-training -g -Ofast -mcpu=ampere1a -flto=32 -funroll-loops --param early-inlining-insns=256 --param max-inline-insns-auto=128 --param inline-unit-growth=256 -ffinite-loops -u malloc -ljemalloc_ext Benchmarks using both C and C++: 801.xz_s: -mabi=lp64 -std=c++17 -std=c18 -Wl,-allow-multiple-definition -static -fwhole-program -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib64 -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib -L/home/amptest/ampere_spec2026/spec2026/jemalloc/install/lib -fprofile-generate -fprofile-use -fprofile-partial-training -g -Ofast -mcpu=ampere1a -flto=32 -funroll-loops --param early-inlining-insns=96 --param max-inline-insns-auto=64 --param inline-unit-growth=96 --param early-inlining-insns=256 --param max-inline-insns-auto=128 --param inline-unit-growth=256 -ffinite-loops -pthread -u malloc -ljemalloc_ext 817.flac_s: basepeak = yes 821.gcc_s: -mabi=lp64 -std=c++17 -std=c18 -Wl,-allow-multiple-definition -static -fwhole-program -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib64 -L/home/amptest/ampere_spec2026/spec2026/gcc/install/lib -L/home/amptest/ampere_spec2026/spec2026/jemalloc/install/lib -fprofile-generate -fprofile-use -fprofile-partial-training -g -Ofast -mcpu=ampere1a -flto=32 -funroll-loops --param early-inlining-insns=96 --param max-inline-insns-auto=64 --param inline-unit-growth=96 --param early-inlining-insns=256 --param max-inline-insns-auto=128 --param inline-unit-growth=256 -ffinite-loops -u malloc -ljemalloc_ext 823.llvm_s: Same as 801.xz_s 829.abc_s: Same as 821.gcc_s 834.vpr_s: Same as 821.gcc_s 835.gem5_s: Same as 801.xz_s 838.diamond_s: Same as 801.xz_s 846.minizinc_s: Same as 801.xz_s Peak Other Flags ---------------- C benchmarks: -w -Wl,-Map,mapfile C++ benchmarks: -Wl,-Map,mapfile Benchmarks using both C and C++: -w -Wl,-Map,mapfile The flags files that were used to format this result can be browsed at http://www.spec.org/cpu2026/results/flags/gcc-rev-A2.html http://www.spec.org/cpu2026/results/flags/GIGA-BYTE-platform-settings-AmpereOneM-rev.1.html You can also download the XML flags sources by saving the following links: http://www.spec.org/cpu2026/results/flags/gcc-rev-A2.xml http://www.spec.org/cpu2026/results/flags/GIGA-BYTE-platform-settings-AmpereOneM-rev.1.xml PTDaemon, SPEC CPU, and SPECspeed are registered trademarks of the Standard Performance Evaluation Corporation. All other brand and product names appearing in this result are trademarks or registered trademarks of their respective holders. ---------------------------------------------------------------------------------------------------------------------------------- For questions about this result, please contact the tester. For other inquiries, please contact info@spec.org. Copyright 2026 Standard Performance Evaluation Corporation Tested with SPEC CPU(R)2026 v0.902.0 on 2026-02-05 17:24:58-0500. Report generated on 2026-05-04 23:27:01 by CPU2026 text formatter (aa18784a). Originally published on 2026-05-05.