SPECsfs97_R1.v3 Result

NSPLab(SM) Performed Benchmarking :	SPECsfs2008 Reference Platform (SPECsfs97_R1 baseline)
SPECsfs97_R1.v3 =	3459 Ops/Sec (Overall Response Time = 2.35 msec)

Performance

Throughput (ops/sec)	Response (msec)
338	0.5
683	0.9
1037	1.3
1371	1.5
1707	1.8
2070	2.3
2419	2.9
2749	3.5
3101	5.1
3459	7.1

Configuration

Server Configuration and Availability
Vendor	NSPLab(SM) Performed Benchmarking
Hardware Available	January 2003
Software Available	November 2007
Date Tested	December 2007
SFS License Number	002851
Licensee Locations	El Paso, TX

CPU, Memory and Power

Model Name SPECsfs2008 Reference Platform (SPECsfs97_R1 baseline)

Processor Intel 2.4 Ghz Xeon

# of Processors 2 cores, 2 chips, 1 core/chip with HT Technology enabled

Primary Cache 16KB Data + 12k instruction uOPs

Secondary Cache 512KB (unified)

Other Cache N/A

UPS N/A

Other Hardware N/A

Memory Size 4 GB

NVRAM Size 2 GB

NVRAM Type N/A

NVRAM Description N/A

Server Software

OS Name and Version Linux RHEL 5.1

Other Software N/A

File System ext3

NFS version 3

Server Tuning

Buffer Cache Size Dynamic

# NFS Processes 64

Fileset Size 32.9 GB

Network Subsystem
Network Type	Gigabit Ethernet
Network Controller Desc.	Onboard Gigabit Ethernet Controller
Number Networks	1
Number Network Controllers	1
Protocol Type	TCP

Switch Type Dell PowerConnect 2616 Gigabit Ethernet Switch

Bridge Type N/A

Hub Type N/A

Other Network Hardware N/A

Disk Subsystem and Filesystems

Number Disk Controllers 4

Number of Disks 26

Number of Filesystems 2

File System Creation Ops N/A

File System Config Each filesystem is created one on a LUN on AX100 and another on a LUN on AX150 for fs1, and fs2 accordingly.

Disk Controller Integrated 2Gb Fibre Channel

# of Controller Type 4

Number of Disks 24

Disk Type 10K RPM 146GB Fibre Channel (part #100-880-285)

File Systems on Disks OS and system (10), Filesystem fs1 (22), HS (2)

Special Config Notes 512KB cache per SP, 2 SPs each AX150 and AX100 storage arrays. 512 MB mirrored write cache per SP. See notes below.

Load Generator (LG) Configuration
Number of Load Generators	4
Number of Processes per LG	8
Biod Max Read Setting	2
Biod Max Write Setting	2

LG Type LG1

LG Model Dell SC430

Number and Type Processors 2 x 450 GHz Spar

Memory Size 1GB

Operating System Linux RHEL 4.2

Compiler None

Compiler Options None

Network Type On Board 1000 BaseT

Testbed Configuration

LG # LG Type Network Target File Systems Notes

1..4 LG1 1 /fs1../fs2 N/A

Testbed Configuration
LG #	LG Type	Network	Target File Systems	Notes
1..4	LG1	1	/fs1../fs2	N/A

Other Notes

A minimal amount of Linux tuning was performed to get the benchmark to
run successfully. The goal was to measure performance as close to out
of the box (default tunings) as possible.
Server tuning:
net.core.rmem_max=1048576
net.core.wmem_max=1048576
net.core.rmem_default=1048576
net.core.wmem_default=1048576
vm.min_free_kbytes=40960
vm.dirty_background_ratio=1
vm.dirty_expire_centisecs=1
vm.dirty_writeback_centisecs=99
vm.dirty_ratio=10
Each EXT3 filesystem was created, using default parameters, one on
a LUN on AX100 and another on a LUN on AX150 for fs1, and fs2
accordingly.
Each array had 2 Fibre Channel connections to the server although
only one connection was enabled.
Storage array notes:
Each of the arrays, AX100 and AX150 contained 12 disks that were
configured as (10+1) RAID-5 groups with 64KB RAID stripe size. The
12th disk was configured as hot spare. Each RAID group was binded in
a single LUN on each array. Each file system was configured on one
LUN: fs1 on AX1500 and fs2 on AX100.
The storage arrays have dual storage processor units that work as
an active-active failover pair. The mirrored write cache is backed up
with a battery unit capable of saving the write cache to disk in the
event of a power failure. In the event of a storage processor failure,
the second storage processor unit is capable of saving all state that
was managed by the first (and vice-versa), even with a simultaneous
power failure.
When one of the storage processors or battery units are off-line, the
system turns off the write cache and writes directly to disk before
acknowledging any write operations.
The length of time the battery can support the retention of data is 2
minutes - that is sufficient to write all necessary data twice.
Storage processor A could have written 99% of its memory to disk and
then fail. In that case storage processor B has enough battery to
store its copy of A's data as well as its own.

First published at SPEC.org on 19-Mar-2008

LG Type	LG1
LG Model	Dell SC430
Number and Type Processors	2 x 450 GHz Spar
Memory Size	1GB
Operating System	Linux RHEL 4.2
Compiler	None
Compiler Options	None
Network Type	On Board 1000 BaseT