SPECweb99 Result

IBM:	RS/6000 44P-270 (450MHz, 8MBL2)
Zeus Technology Ltd.:	Zeus 4.0

SPECweb99 = 3497

Performance

Iteration

Conforming Simultaneous Connections

1	3457
2	3497
3	3497
Median	3497

Configuration

Availability Dates
All Hardware	Oct-2001
HTTP Software	Oct-2001
Operating System	Dec-2001
Supplemental System	Dec-2001

Hardware

Vendor IBM

Model RS/6000 44P-270 (450MHz, 8MBL2)

Processor 450MHz POWER3-II

# Processors 4 cores, 4 chips, 1 core/chip

Primary Cache 32KBI+64KBD on chip

Secondary Cache 8MB(I+D) off chip

Other Cache None

Memory 16 GB

Disk Subsystem 7x18.2 SSA Disk(fast-write enabled)

Disk Controllers IBM SSA 160 SerialRAID Adapter

Other Hardware 4 x Alteon ACESwitch 180

Software

Operating System AIX 5L V5.1

File System JFS

Other Software None

HTTP Software

Vendor Zeus Technology Ltd.

HTTP Software Zeus 4.0

API ISAPI

Server Cache FRCA (Fast Response Cache Accelerator)

Log Mode Binary CLF for Zeus, CLF for FRCA

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

Network

# of Controllers 4

Network Controllers 4 IBM Gigabit Ethernet-SX PCI Adapter

# of Nets 4

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 12

Model RS/6000 44P-270

Processor 375 MHz POWER3-II

# of Processors 4

Memory 2048MB

Network Controller 1 IBM Gigabit Ethernet-SX PCI Adapter

Operating System AIX 4.3.3

Compiler IBM Cset++ Version 3.1.3

Benchmark Configuration

Requested Connections 3500

Fileset Size (MB) 11321.6

Notes

SUT Notes

APAR IY22854 was applied to AIX 5L V5.1 to enable new hardware support
bindprocessor [process] [cpu] (Process affinity - bind 4 Zeus instances to 4 cpu's(1 instance to 1 cpu))
bindintcpu [interrupt level] [cpu] (Interrupt affinity - bind 4 Ethernet interrupts to 4 cpu's(1 interrupt to 1 cpu))
maxpgahead=32(the maximum number of pages to be read ahead,default=8)
maxfree=152(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 into contiguous buffer on transmit if this many or less bytes, default=2048)
Set Gigabit Ethernet driver attribute large_send=yes(turn on large_send capability of TCPIP, default=no)
4 different logs for 4 zeus instances (1 log per zeus instance) for dynamic requests
frca-log.N (once the frca-log.N reaches 1GB, a new frca-log.N+1 is generated) for static requests
frcactrl pctonintr 100 (frca set to allow 100% cpu time on interrupt, default 90)
frcactrl revaltimeout 100000 (set frca revalidation timeout to 100,000 seconds, default=300 seconds)
Disk layout: 1 disk for OS, 1 disk for webserver, 4 disks for file_set, 1 disk for logfiles
no (network option) tuning:
no -o send_file duration=180000(cached send_file expiration time, default=300)
no -o somaxconn=9216(max listen backlog, default=1024)
no -o nbc_max_cache=100(max file size for network buffer cache,default=1048576)
no -o nbc_pseg=200000(max file entries in private segment,default=0)
no -o tcp_timewait=5(ensure that TIME_WAIT is at least 60 seconds, default=1)
no -o tcp_sendspace=65536 (default socket send buffer size, default=16384)
no -o tcp_recvspace=65536 (default socket receive buffer size, default=16384)

HTTP API Notes

Zeus PEPP version 0.6 SPECweb99 toolkit used for dynamic content
post.log in /weblog directory instead of doc_root
./Configure --sendfile=no --locking=semop

Client Notes

APAR IY17356 was applied to AIX 4.3.3
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 4 unique instances of Zeus sharing a common docroot
Each Zeus instance is bound to a unique IP address
Zeus 4.0 global.cfg(one per instance):
tuning!bind_any no
tuning!cache_files 100003
tuning!cache_large_file 9216
tuning!cache_small_file 9216
tuning!cache_stat_expire 180000
tuning!cache_flush_interval 180000
tuning!cache_max_bytes 0
tuning!num_children 1
tuning!keepalive yes
tuning!keepalive_timeout 1000
tuning!keepalive_max -1
tuning!listen_queue_size 9216
tuning!cbuff_size 1048576
tuning!multiple_accept yes
tuning!sendfile yes
tuning!sendfile_maxsize 1048576
tuning!sendfile_minsize 9216
tuning!sendfile_reservefd 32000
tuning!so_nagle_off no
tuning!so_rbuff_size 32768
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
tuning!accelerator!frca!enabled yes
tuning!accelerator!frca!log!enabled yes
tuning!accelerator!frca!log!filename /weblog/log/frca-log
tuning!accelerator!frca!log!format CLF
tuning!accelerator!frca!maxsize 1048576
tuning!accelerator!frca!minsize 100
Zeus_Site_Configuration:
modules!cgi!enabled yes
modules!isapi!enabled yes
Tuning Disclosure: IBM-20011019.txt
Dynamic API: IBM-20011019_2-API.tar.gz

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	3457	98.8%	9704.3	360.7	2.77	331.8
2	3497	99.9%	9764.6	358.4	2.79	333.8
3	3497	99.9%	9805.3	356.9	2.80	335.2

Mon Apr 25 12:38:28 2005

First published at SPEC.org on 13-Nov-2001