SPECweb96 Result

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                                                        ||
 IBM : RS/6000 S80                                      ||   40161  SPECweb96
 IBM : IBM HTTP Server 1.3.6                            ||
                                                        ||
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   Throughput   Response
     ops/sec      msec
      4136         8.1
      8331         5.2
     12429         2.4
     16520         2.3
     20536         2.4
     24391         2.6
     28347         2.7
     33399         4.0
     38773        10.4
     40161        12.2

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                          General Availability Dates

 Hardware            Oct-99
 Operating System    Sep-99
 HTTP Software       Aug-99

                               System Hardware

 Vendor              IBM
 Model               RS/6000 S80
 Processor           450 MHz RS64-III
 # of Processors     12
 Primary Cache       128KBI+128KBD on chip
 Secondary Cache     8MB(I+D) off chip
 Other Cache         None
 Memory              16GB
 Disk Controllers    Wide/Fast-20 SCSI I/O Controller
 Disk Subsystem      6 9.1GB 16 Bits SCSI Disk Drive
 Other Hardware      Alteon ACEswitch 180 Gigabit Ethernet switch

                               System Software

 Operating System    AIX 4.3.3
 Other Software      None
 File System Type    JFS

                                HTTP Software

 Vendor              IBM
 HTTP Software       IBM HTTP Server 1.3.6
 # of "threads"      See Other Notes
 Server Cache        FRCA (Integrated)
 Log Mode            Common Log Format

                                   Network

 # of Controllers    12
 Network Controller  Gigabit Ethernet-SX PCI Adapter
 # of Nets           12
 Type of Nets        Gigabit Jumbo Frame
 Network Speed       1 Gb/sec
 MSL (sec)           30
 Time-Wait (sec)     60

                               Load Generators

 # of Generators     46
 # of Processes Each 12
 Model               RS/6000 7043-260
 Processor           200 MHz Power 3
 # of Processors     2
 Memory              1024MB
 Network Controller  Gigabit Ethernet-SX PCI Adapter
 Operating System    AIX 4.3.2
 Compiler            IBM Cset++ Version 3.1.3

                            Benchmark Configuration

 Max Requested Load  41500
 Max Fileset Size    4452

                                 Test Sponsor

 Tested By           IBM Austin
 License Number      11
 Test Date           June-99

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                                Network Notes

<> Gigabit Jumbo Frame MTU=9000
<> 2 clients on first network, 4 clients on all other networks

                                 Other Notes

<> server no (network option) tuning:
<> no -o sb_max=262144 (max buffer size allowed for a socket, default=65535)
<> no -o somaxconn=16384 (max listen backlog, default=1024)
<> no -o tcp_sendspace=28000 (default socket send buffer size, default=16384)
<> no -o tcp_recvspace=28000 (default socket receive buffer size, default=16384)
<> no -o tcp_timewait=5 (ensure that TIME_WAIT is at least 60 seconds, default=1)
<> no -o nbc_limit=393216 (max network buffer cache, default=786432)
<> no -o nbc_max_cache=60000 (max file size for network buffer cache, default=131072)
<> no -o nbc_pseg=80000 (number of entry allowed in private segment, default=0)
<> bind frca logging thread to cpu 0
<> frca set to allow 95% cpu time on interrupt
<> frca set to run without virtual host support
<> processor affinity - bind each jumbo frame network intr to a cpu
<> 12 httpd.conf used each binds to an ip address, minserver=5, maxserver=10
<> client no (network option) tuning:
<> no -o tcp_sendspace=28000 (default socket send buffer size, default=16384)
<> no -o tcp_recvspace=28000 (default socket receive buffer size, default=16384)
<> no -o delayack=3 (delay ack for connection setup and shutdown, default=0)
<> no -o delayackports={80} (delay ack ports, default={})
<> Alternate HTTP/HT.c used. Repeated client-side calls 'gethostbyname()' ommitted, as approved by SPEC. No change in measured server performance but reduction in client load.

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