SPECweb99 Result

IBM:	IBM pSeries 660 Model 6H1
Zeus Technology Ltd.:	Zeus 3.3.8

SPECweb99 = 4522

Performance

Iteration

Conforming Simultaneous Connections

1	4538
2	4522
3	4463
Median	4522

Configuration

Availability Dates
All Hardware	Apr-2001
HTTP Software	Feb-2001
Operating System	Apr-2001
Supplemental System	Apr-2001

Hardware

Vendor IBM

Model IBM pSeries 660 Model 6H1

Processor 668MHz RS64 IV

# Processors 6 cores, 6 chips, 1 core/chip

Primary Cache 128KBI+128KBD on chip

Secondary Cache 8MB(I+D) off chip

Other Cache None

Memory 32 GB

Disk Subsystem 1x9.1GB 16Bit SCSI Disk and 10x18.2 SSA Disk(fast-write enabled)

Disk Controllers Wide/Ultra-2 SCSI I/O Controller and IBM SSA 160 SerialRAID Adapter

Other Hardware 6 x Alteon ACESwitch 180

Software

Operating System AIX 4.3.3 + APAR IY17356

File System JFS

Other Software None

HTTP Software

Vendor Zeus Technology Ltd.

HTTP Software Zeus 3.3.8

API ISAPI

Server Cache See Notes

Log Mode Binary Common Log Format

Test Sponsor
Test Date	Mar-2001
Tested By	IBM
SPEC License	11

Network

# of Controllers 6

Network Controllers 6 Gigabit Ethernet-SX PCI Adapter

# of Nets 6

Type of Nets Gigabit Ethernet

Network Speed 1 Gigabit/sec

MSL (sec) 30 (Non RFC1122)

Time-Wait (sec) 60 (Non RFC1122)

MTU 1500

Clients

# of Clients 24

Model IBM RS/6000 7044-270

Processor 375 MHz POWER3-II

# of Processors 4

Memory 2048MB

Network Controller 1 Gigabit Ethernet-SX PCI Adapter

Operating System AIX 4.3.3

Compiler IBM Cset++ Version 3.1.3

Benchmark Configuration

Requested Connections 4550

Fileset Size (MB) 14679.04

Notes

SUT Notes

APAR IY17356: New hardware support for Apr-2001
bosdebug -H (enables secondary thread on the processor)
no(network option) tuning:
no -o send_file duration=180000(cached send_file expiration time, default=300)
no -o somaxconn=8192(max listen backlog, default=1024)
no -o nbc_max_cache=100(max file size for network buffer cache,default=1048576)
no -o nbc_pseg=110000(max file entries in private segment,default=0)
no -o tcp_timewait=5(ensure that TIME_WAIT is at least 60 seconds, default=1)
Interrupt affinity - bind 6 Ethernet interrupts to 6 cpu's(1 interrupt to 1 cpu)
Processor affinity - bind 6 Zeus instances to 6 cpu's(1 instance to 1 cpu)
maxpgahead=64(the maximum number of pages to be read ahead,default=8)
maxfree=304(the number of frames on the free list at which page stealing is to stop,default 256)
minperm=5%(the point below which the page-stealer will steal file of computational pages,default=20%)
maxperm=95%(the point above which the page stealing algorithm steals only file page,default=80%)
Set Gigabit Ethernet driver attribute copy_bytes=256(copy packet from system memory to Gigabit Ethernet adapter if this many or less bytes, default=2048)
6 different logs for 6 zeus instances (1 log per zeus instance)
Disk layout: 1 disk for OS, 1 disk for webserver, 7 disks striped for file_set, 1 disk for logfile)

HTTP API Notes

Zeus ISAPI interface used for dynamic content
FastCGI used as communication method to manage all the independent CGI processes
IBM-20001225.tar.gz dynamic API used

Client Notes

no (network option) tuning:
no -o delayack=3(delay ack for connection setup and shutdown,default=0)
no -o delayackports={80}(delay ack ports,default={} )
no -o tcp_timewait=5(ensure that TIME_WAIT is at least 60 seconds,default=1)

Other Notes

Starts 6 instances of Zeus sharing a common docroot
The two children of each Zeus instance are bound to a unique IP address
Zeus 3.3.8 global.cfg:
tuning!bind_any no
tuning!cache_files 120011
tuning!cache_large_file 92160
tuning!cache_small_file 9216
tuning!cache_stat_expire 180000
tuning!cache_flush_interval 180000
tuning!cache_max_bytes 0
tuning!num_children 2
tuning!keepalive yes
tuning!keepalive_max -1
tuning!listen_queue_size 8192
tuning!cbuff_size 1048576
tuning!multiple_accept yes
tuning!sendfile yes
tuning!sendfile_maxsize 1048576
tuning!sendfile_minsize 9216
tuning!sendfile_reservefd 12000
tuning!so_nagle_off no
tuning!so_rbuff_size 65535
tuning!softservers no
tuning!unique_bind yes
tuning!use_poll no
tuning!cache_cooling_time 0
tuning!modules!cgi!cleansize 0
tuning!modules!stats!enabled no
tuning!modules!nsapi!enabled no
Zeus_Site_Configuration:
modules!cgi!enabled yes
modules!fastcgi!enabled yes
modules!isapi!enabled yes

Test Run Details

**Test results for each iteration (median is shaded)**
Iteration	Conforming Connections	Percent Conform	Throughput ops/sec	Response msec	ops/sec/ loadgen	kbit/ sec
1	4538	99.7%	12995.4	350.3	2.86	341.5
2	4522	99.4%	12885.8	353.3	2.83	338.7
3	4463	98.1%	12815.5	355.2	2.82	337.0

Mon Apr 25 12:38:17 2005

First published at SPEC.org on 17-Apr-2001