SPECweb99_SSL Result

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

SPECweb99_SSL = 3699

Performance

Iteration

Conforming Simultaneous Connections

1	3697
2	3699
3	3699
Median	3699

Configuration

Availability Dates
All Hardware	Jul-2003
HTTPS 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 32GB (2 x 16GB)

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

Disk Controllers Wide/Ultra-2 SCSI I/O Controller
IBM SSA 160 SerialDisk Adapter

Other Hardware 1 x IBM Crypto Accelerator 2058
4 x Alteon ACESwitch 180

Software

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

File System JFS2

Other Software None

HTTPS Software

Vendor Zeus Technology Ltd.

HTTPS Software Zeus 4.2r3

API ISAPI

Server Cache None

Log Mode Binary CLF

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

Network

# of Controllers 4

Network Controllers 4 Gigabit Ethernet-SX PCI-X Adapter (14106802)

# 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 16

Model IBM pSeries 630

Processor 1000 MHz Power4

# of Processors 4

Memory 8GB

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

Operating System AIX 5.2

Compiler IBM Cset++ Version 5.1

Benchmark Configuration

Requested Connections 3700

Fileset Size (MB) 11960.88

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 4 Ethernet interrupts to 4 cpu's(1 interrupt to 1 cpu))
bindprocessor [pid] [cpu] (process affinity - bind each Zeus child process to the CPU servicing the interrupts of the corresponding NIC)
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%)
lgpg_size=16777216 (large_page size, default=0)
lgpg_regions=768 (large_page pool size, default=0)
4 different logs for 4 zeus instances (1 log per zeus instance)
Disk layout: 1 disk for OS, 1 disk for webserver, 14 disks striped for file_set, 2 disks striped for logfiles
Set Gigabit Ethernet driver attribute copy_bytes=256(copy packet from system memory to Gigabit Ethernet adapter if this many or less bytes, default=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))
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 somaxconn=10240(max listen backlog, default=1024)
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 RFC2582, default=1)
no -o tcp_hashtab_size=128021(increase TCP PCB hash table size, default=24499)
one external 7040-61D I/O drawer used for 4 Gigabit ethernet adapters and one crypto accelerator 2058 card
one external 7133-D40 SSA drawer used for 16 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={443}(delay ack ports,default={} )
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)
AIX (thread-scheduling option) tuning:
AIXTHREAD_SCOPE=S (AIX pthread environment variable, set all threads have system based contention scope={1:1}, default={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 instances of Zeus sharing a common docroot
Each Zeus child process was bound to the processor corresponding to its NIC
Zeus 4.2r3 global.cfg:
tuning!bind_any no
tuning!cache_files 100003
tuning!cache_large_file 1048576
tuning!cache_small_file 10240
tuning!cache_stat_expire 180000
tuning!cache_flush_interval 180000
tuning!cache_max_bytes 0
tuning!num_children 1
tuning!keepalive yes
tuning!ssl_keepalive yes
tuning!ssl_diskcache no
tuning!ssl_sessioncache_size 5003
tuning!keepalive_timeout 300
tuning!timeout 600
tuning!keepalive_max -1
tuning!listen_queue_size 9216
tuning!cbuff_size 1048576
tuning!multiple_accept yes
tuning!sendfile 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!cgi!cbuff_size 921632
tuning!modules!stats!enabled no
tuning!modules!nsapi!enabled no
tuning!modules!ssld!library libZica.so
tuning!modules!ssld!ica_lib /usr/lib/pkcs11/PKCS11_API.so64
tuning!modules!ssld!nworkers 256
tuning!modules!ssld!queuelen 10240
tuning!modules!ssld!failurecount 0 (the number of successive zeus.ssld failures
the web server will tolerate before fall back to software permanently, set to 0
so the web server will never fall back to software permanently, and always try to
contact zeus.ssld first. default 5)
Zeus_Site_Configuration (one per instance):
modules!cgi!enabled yes
modules!isapi!enabled yes
modules!security!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	3697	99.9%	10212.2	362.1	2.76	330.8
2	3699	100.0%	10206.3	362.3	2.76	330.5
3	3699	100.0%	10215.0	362.0	2.76	330.9

Tue May 25 16:08:02 2004

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