SPECweb99 Result

IBM Corporation:	IBM eServer p5 570 (1900 MHz, 4 CPU, Linux)
Red Hat:	Red Hat Content Accelerator 3.2

SPECweb99 = 13500

Performance

Iteration

Conforming Simultaneous Connections

1	13500
2	13500
3	13500
Median	13500

Configuration

Availability Dates
All Hardware	Sep-2004
HTTP Software	Aug-2003
Operating System	Sep-2004
Supplemental System	Aug-2004

Hardware

Vendor IBM Corporation

Model IBM eServer p5 570 (1900 MHz, 4 CPU, Linux)

Processor 1900 MHz POWER5

# Processors 4 cores, 2 chips, 2 cores/chip (SMT on)

Primary Cache 64KBI+32KBD (on chip)/core

Secondary Cache 1920KB unified (on chip)/chip

Other Cache 36MB unified (off chip)/DCM, 2 DCM/SUT

Memory 64GB (16x4GB)

Disk Subsystem 5x36GB 15K rpm SCSI disks

Disk Controllers PCI-X Dual Channel Ultra320 SCSI Adapter

Other Hardware 4 Cisco Catalyst 3550 Switches

Software

Operating System Red Hat Enterprise Linux 3 Update3

File System ext3 for OS ext2 for raid/mounts

Other Software none

HTTP Software

Vendor Red Hat

HTTP Software Red Hat Content Accelerator 3.2

API RHCA API

Server Cache None

Log Mode Binary CLF

Test Sponsor
Test Date	Jul-2004
Tested By	IBM
SPEC License	11

Network

# of Controllers 8

Network Controllers 8 IBM 10/100/1000 Base-TX Ethernet PCI-X Adapter

# of Nets 8

Type of Nets Gigabit Ethernet

Network Speed 1 Gb/sec

MSL (sec) 30 (Non RFC1122)

Time-Wait (sec) 60 (Non RFC1122)

MTU 1500

Clients

# of Clients 32

Model IBM pSeries p630

Processor 1450 MHz

# of Processors 4

Memory 4GB

Network Controller IBM 10/100/1000 Base-TX Ethernet PCI-X Adapter

Operating System SLES 8 SP3a

Compiler gcc 3.2.2

Benchmark Configuration

Requested Connections 13500

Fileset Size (MB) 43319.76

Notes

SUT Notes

1 disk for OS 1 disk for docroot 1 disk for tux log and 2 disks for fileset internal raid0
SMT enabled - smt=on
2 external 7311-D11 I/O drawers used for 8 Gigabit adapters (4 adapters per drawer)

Operating System Notes

Tuning parameters:
ulimit -n 1000000, sets number of open files, default 1024
One NIC IRQ bound per logical CPU
Each NIC's ITR set to 1900 via insmod InterruptThrottleRate=1900, default=dynamic
File systems mounted with "noatime,nodiratime", no inode access time updating
net.ipv4.nonlocal_bind = 1, allows processes to bind to non-local IP adresses
net.ipv4.tcp_timestamps = 0, turns TCP timestamp support off, default on
net.ipv4.tcp_max_tw_buckets = 3000000, sets TCP time-wait buckets pool size, default 180000
net.ipv4.tcp_rmem = 30000000 30000000 30000000, sets min/default/max TCP read buffer, default 4096 87380 174760
net.ipv4.tcp_wmem = 30000000 30000000 30000000, sets min/pressure/max TCP write buffer, default 4096 16384 131072
net.ipv4.tcp_mem = 30000000 30000000 30000000, sets min/pressure/max TCP buffer space, default 31744 32256 32768
net.ipv4.tcp_window_scaling = 0, turn TCP window scaling support off, default on
net.core.hot_list_length = 5000, maximum number of skb-heads to be cached, default 128
net.core.rmem_max = 1048576, maximum receive socket buffer size, default 131071
net.core.wmem_max = 1048576, maximum send socket buffer size, default 131071
net.core.rmem_default = 1048576, default receive socket buffer size, default 65535
net.core.wmem_default = 1048576, default send socket buffer size, default 65535
net.core.optmem_max = 10000000, maximum amount of option memory buffers, default 20480
net.core.netdev_max_backlog = 300000, number of unprocessed input packets before kernel starts dropping them, default 300
net.ipv4.conf.all.arp_filter=1, enable source route verification, default=0
DCM: Acronym for "Dual-Chip Module" (one dual-core processor chip + one L3-cache chip)
SMT: Acronym for "Simultaneous Multi-Threading". A processor technology that allows the simultaneous execution of -
- multiple thread contexts within a single processor core. (Enabled by default)

HTTP Software Notes

HTTP Software Notes
One network bound per TUX thread
net.tux.logging = 1, turns on logging of requests, default 0
net.tux.cgiroot = /, cgi root check, default /var/www/tux/cgiroot/
CGI_UID=root, userid for cgi scripts; default: 0
CGI_GID=root, groupid for cgi scripts; default: 0
net.tux.max_backlog = 3000, maximum per-listening-socket TCP backlog size, default 2048
net.tux.generate_etags = 0, don't generate ETag header, default 1
net.tux.noid = 1, suppress the Server id string, default 0

Client Notes

./configure --enable-posix-threads
ulimit -n 1000000, sets number of open files, default 1024
net.ipv4.ip_local_port_range = 1024 65535

Other Notes

Other Notes
Tuning Disclosure: See above.
Dynamic API, flag descriptions, kernel config: IBM-20040617-RHCA.tgz
Dynamic API renamed to f.tux, CGI renamed to x.cgi

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	13500	100.0%	38121.5	354.4	2.82	336.4
2	13500	100.0%	38021.3	355.4	2.82	335.6
3	13500	100.0%	37983.8	355.7	2.81	335.3

Wed Sep 29 15:13:20 2004

First published at SPEC.org on 17-Aug-2004