SPECweb99 Result

IBM:	pSeries 660 Model 6H1 (4-way)
Zeus Technology Ltd.:	Zeus 3.3.8.4

SPECweb99 = 3279

Performance

Iteration

Conforming Simultaneous Connections

1	3284
2	3279
3	3216
Median	3279

Configuration

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

Hardware

Vendor IBM

Model pSeries 660 Model 6H1 (4-way)

Processor 600MHz RS64 IV

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

Primary Cache 128KBI+128KBD on chip

Secondary Cache 4MB(I+D) off chip

Other Cache None

Memory 32 GB

Disk Subsystem 9x18.2 SSA Disk(fast-write enabled)

Disk Controllers IBM SSA 160 SerialRAID adapter

Other Hardware 4 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 3.3.8.4

API ISAPI

Server Cache See notes

Log Mode Binary Common Log Format

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

Network

# of Controllers 4

Network Controllers 4 Gigabit Ethernet-SX PCI Adapter

# of Nets 4

Type of Nets Gigabit Ethernet

Network Speed 1 Gb/s

MSL (sec) 30 (Non RFC1122)

Time-Wait (sec) 60 (Non RFC1122)

MTU 1500

Clients

# of Clients 16

Model 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 3300

Fileset Size (MB) 10677.44

Notes

SUT Notes

APAR IY17356: New hardware support for Apr-2001
bosdebug -H (enables secondary thread on the processor)
Processor affinity - bind 4 Zeus instances to 4 cpu's(1 instance to 1 cpu)
Interrupt affinity - bind 4 Ethernet interrupts to 4 cpu's(1 interrupt 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 into contiguous buffer on transmit if this many or less bytes, default=2048)
4 different logs for 4 zeus instances (1 log per zeus instance)
Disk layout: 1 disk for OS, 1 disk for webserver, 6 disks striped 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=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=100000(max file entries in private segment,default=0)
no -o tcp_timewait=5(ensure that TIME_WAIT is at least 60 seconds, default=1)

HTTP API Notes

Zeus PEPP SPECweb99 toolkit used for dynamic content
./Configure --sendfile=no --locking=semop

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 4 instances of Zeus sharing a common docroot
The two children of each Zeus instance are bound to a unique IP address
Zeus 3.3.8.4 global.cfg:
tuning!bind_any no
tuning!cache_files 120011
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 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 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
Zeus_Site_Configuration:
modules!cgi!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	3284	99.5%	9470.9	348.7	2.87	343.4
2	3279	99.4%	9481.8	348.3	2.87	343.7
3	3216	97.5%	9402.7	351.2	2.85	341.0

Mon Apr 25 12:38:19 2005

First published at SPEC.org on 12-Jun-2001