SPECweb99 Result

Dell:	PowerEdge 2650
Red Hat:	Red Hat Content Accelerator 3.2

SPECweb99 = 7800

Performance

Iteration

Conforming Simultaneous Connections

1	7800
2	7800
3	7799
Median	7800

Configuration

Availability Dates
All Hardware	Feb-2004
HTTP Software	Oct-2003
Operating System	Oct-2003
Supplemental System	Oct-2003

Hardware

Vendor Dell

Model PowerEdge 2650

Processor 3.20GHz Intel Xeon Processor DP

# Processors 2 cores, 2 chips, 1 core/chip (Hyper-Threading enabled)

Primary Cache 12KBI+8KBD on chip

Secondary Cache 512KB

Other Cache 2MB L3

Memory 12 GB

Disk Subsystem 2 36GB, 14 18GB 15KRPM drives

Disk Controllers Onboard Adaptec SCSI, LSI 21320-IS

Other Hardware Dell PowerConnect 5224
Dell PowerVault 220S

Software

Operating System Red Hat Enterprise Linux AS 3

File System ext2

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	Jan-2004
Tested By	Dell
SPEC License	55

Network

# of Controllers 2

Network Controllers Intel PRO/1000 MT Dual Port Server Adapters

# 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 Dell PowerEdge 1650

Processor 1.4GHz Pentium III

# of Processors 2

Memory 256MB

Network Controller Onboard Intel 82544EI

Operating System Microsoft Windows XP

Compiler Microsoft Visual C++ 6.0

Benchmark Configuration

Requested Connections 7800

Fileset Size (MB) 25078.32

Notes

SUT Notes

1 disk for OS, 1 disk logs; attached to onboard SCSI
14-disk SW RAID-0 stripe for file set; attached to LSI adapter
Hyper-Threading enabled, Sequential Memory Access disabled

Operating System Notes

ulimit -n 10000, sets number of open files, default 1024
One NIC IRQ bound per logical CPU; timer and LSI (file set) IRQs bound to CPU 1, default 0
Each NIC's TX queue length set to 20000 via ifconfig, default 100
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 = 1500000, 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.optmem_max = 10000000, maximum amount of option memory buffers, default 10240
net.core.rmem_max = 10000000, maximum receive socket buffer size, default 131071
net.core.wmem_max = 10000000, maximum send socket buffer size, default 131071
net.core.rmem_default = 10000000, default receive socket buffer size, default 65535
net.core.wmem_default = 10000000, default send socket buffer size, default 65535
net.core.netdev_max_backlog = 300000, number of unprocessed input packets before kernel starts dropping them, default 300
sys.vm.dcache_priority = 1000000, lowers # entries zapped from dcache each iteration, default 0
Kernel parameters:
idle=poll, idle threads poll reschedule flag, default is to use HLT instruction

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/
net.tux.cgi_uid = 99, uid 'nobody' for cgi scripts; default -1
net.tux.cgi_gid = 99, gid 'nobody' for cgi scripts; default -1
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.generate_last_mod = 0, don't generate Last-Modified header, default 0
net.tux.noid = 1, suppress the Server id string, default 0
net.tux.max_connect = 50000, maximum # simultaneous connections, default 1000
net.tux.cgi_inherit_cpu = 1, CGIs inherit CPU binding, default 0

Client Notes

Registry tunes:
- Tcpip\Parameters\MaxUserPort=0xfffe, sets maximum open ports to 65534
- Tcpip\Parameters\TcpTimedWaitDelay=60, sets TIME_WAIT parameter to 60 seconds (non-RFC 1122), default 240
- Tcpip\Parameters\MaxFreeTWTcbs=100000, sets maximum number of TIME_WAIT tcbs to 100,000
- Tcpip\Parameters\TcpWindowSize=65535, sets TCP send\receive window size, default 8192

Other Notes

Tuning Disclosure: See above.
Dynamic API, flag descriptions, kernel config: Dell-20031027-RHCA.tgz
Dynamic API renamed to f.x, 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	7800	100.0%	22228.5	351.1	2.85	339.6
2	7800	100.0%	22031.8	354.1	2.82	336.7
3	7799	100.0%	21937.5	355.8	2.81	335.0

Wed Apr 13 16:35:17 2005

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