SPECweb99 Result

IBM:	IBM eServer pSeries 655
Zeus Technology Ltd.:	Zeus 4.2r3

SPECweb99 = 10291

Performance

Iteration

Conforming Simultaneous Connections

1	10300
2	10262
3	10291
Median	10291

Configuration

Availability Dates
All Hardware	Jul-2003
HTTP Software	Jul-2003
Operating System	Jul-2003
Supplemental System	Jul-2003

Hardware

Vendor IBM

Model IBM eServer pSeries 655

Processor 1700MHz POWER4+

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

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

Secondary Cache 1536KB(I+D) unified (on chip) per chip

Other Cache 128MB unified (off chip)/MCM, 4 chips/MCM

Memory 64GB (4x16GB)

Disk Subsystem 2x36GB (10 KRPM) 16Bit SCSI Disk
20x18.2GB (10 KRPM) SSA Disks
(fast-write enabled)

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

Other Hardware 9 x Alteon ACESwitch 180

Software

Operating System AIX 5L V5.2(64bit)

File System JFS2

Other Software None

HTTP Software

Vendor Zeus Technology Ltd.

HTTP Software Zeus 4.2r3

API ISAPI

Server Cache FRCA (Fast Response Cache Accelerator)

Log Mode Binary CLF for Zeus, CLF for FRCA

Test Sponsor
Test Date	May-2003
Tested By	IBM
SPEC License	11

Network

# of Controllers 8

Network Controllers 8 IBM Gigabit Ethernet-SX PCI-X Adapter(14106802)

# 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 40

Model IBM pSeries 630

Processor 1000 MHz POWER4

# of Processors 4

Memory 8GB

Network Controller 1 Gigabit Ethernet-SX PCI-X Adapter (14106802)

Operating System AIX 5.2

Compiler IBM Cset++ Version 5.1

Benchmark Configuration

Requested Connections 10300

Fileset Size (MB) 33081.52

Notes

SUT Notes

APAR IY44268 (misc AIX 5.2 code enhancements, include tcpip and Gb ethernet driver performance) was applied to AIX 5L V5.2
bindintcpu [interrupt level] [cpu] (Interrupt affinity - bind 8 Ethernet interrupts to 4 cpu's(2 interrupts to 1 cpu))
maxpgahead=64(the maximum number of pages to be read ahead,default=8)
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%)
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
Disk layout: 1 disk for OS, 1 disk for webserver, 14 disks striped for file_set, 6 disks striped for web logfile)
Set Gigabit Ethernet driver attribute rxbuf_pool_sz=2048 (set Receive buffer pool size, default=1024)
Set Gigabit Ethernet driver attribute txdesc_que_sz=1024 (set Transmit descriptor queue size, default=512)
Set Gigabit Ethernet driver attribute copy_bytes=256 (copy packet into contiguous buffer on transmit if this many or less bytes, defult=2048)
Set Gigabit Ethernet driver attribute intr_rate=2000 (maximum number of receive interrupts per second that a Gb ethernet adapter will generate, default=0 (no limit))
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)
no(network option) tuning:
no -o tcp_sendspace=65536(default socket send buffer size, default=16384)
no -o tcp_recvspace=65536(default socket receive buffer size, default=16384)
no -o send_file duration=100000(cached send_file expiration time, default=300)
no -o somaxconn=10240(max listen backlog, default=1024)
no -o nbc_max_cache=409600(max file size for network buffer cache, default=1048576)
no -o nbc_pseg=800000(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_newreno=0 (disables the modification to TCP's Fast Recovery algorithm as described in RFC 2582, default=1)
no -o tcp_inpcb_hashtab_siz=128021 (increase TCP PCB hash table size, default=24499)
One external 7040-61D I/O drawer used for 8 Gigabit ethernet adapters
Two external 7133-D40 SSA drawers used for 20 SSA disks
MCM stands for Multiple Chip Module

HTTP API Notes

Zeus PEPP-06 SPECweb99 toolkit used for dynamic content
post.log in /weblog directory instead of doc_root
./Configure --sendfile=no --locking=semop
Compiled with IBM VAC 6.0.0
CFLAGS=-q64 -qlargetype -O2 -qmaxmem=8192
LDFLAGS=-q64 -qlargetype -bnoentry -Wl -G -bexpall -bM:SRE -lc -lbsd

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)
tcp_sendspace=65536(default socket send buffer size, default=16384)
tcp_recvspace=65536(default socket receive buffer size, default=16384)
AIX (thread-scheduling option) tuning:
AIXTHREAD_SCOPE=S (AIX pthread environment variable, set all threads have system based contention scope, {1:1}, default=P{8:1})
AIXTHREAD_SLPRATIO=1:1 (AIX pthread environment variable, controls the number of kernel threads that should be held in reserve for sleeping threads, default={12:1})
YIELDLOOPTIME=1000 (AIX pthread environment variable, controls the number of times to yield the processor before blocking on a busy lock, default=0)

Other Notes

Starts 4 unique instances of Zeus sharing a common docroot
Each Zeus instance bound to processor corresponding to its NIC
Zeus 4.2r3 global.cfg (one per instance)
tuning!bind_any no
tuning!cache_files 50021
tuning!cache_large_file 9216
tuning!cache_small_file 4096
tuning!cache_stat_expire 180000
tuning!cache_flush_interval 180000
tuning!cache_max_bytes 0
tuning!num_children 2
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 100
tuning!sendfile_reservefd 31993
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 (one per instance):
modules!cgi!enabled yes
modules!isapi!enabled yes
bindaddr ip_addr1, ip_addr2
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	10300	100.0%	28973.2	355.8	2.81	336.2
2	10262	99.6%	28678.9	359.5	2.78	332.8
3	10291	99.9%	28800.9	357.9	2.80	334.2

Tue May 25 16:21:42 2004

First published at SPEC.org on 27-May-2003