Low-MemorySituations ..................................................................................................................... 86
TooFew Threads .................................................................................................................................86
CacheNot Utilized ..............................................................................................................................87
Keep-AliveConnections Flushed ...................................................................................................... 87
LogFile Modes .....................................................................................................................................88
4 Platform-SpecicIssues and Tips .....................................................................................................89
SolarisPlatform-Specic Issues .........................................................................................................89
FilesOpen in a Single Process (File Descriptor Limits) ........................................................... 89
Failureto Connect to HTTP Server ...........................................................................................90
ConnectionRefused Errors ........................................................................................................ 91
TuningTCP Buering ................................................................................................................. 91
Usingthe Solaris Network Cache and Accelerator (SNCA) ...................................................91
▼ToEnable SNCA to Work With Web Server ....................................................................92
SolarisFile System Tuning ................................................................................................................. 93
HighFile System Page-In Rate .................................................................................................... 93
ReduceFile System Housekeeping ............................................................................................. 93
LongService Times on Busy Disks or Volumes .......................................................................93
SolarisPlatform-Specic Performance Monitoring ........................................................................ 94
Short-TermSystem Monitoring ................................................................................................ 94
Long-TermSystem Monitoring .................................................................................................95
“Intelligent”Monitoring .............................................................................................................95
Solaris10 Platform-Specic Tuning Information ...........................................................................95
TuningSolaris for Performance Benchmarking .............................................................................. 96
TuningUltraSPARC T1–Based Systems for Performance Benchmarking .................................. 97
TuningOperating System and TCP Settings ............................................................................97
DiskConguration ......................................................................................................................98
NetworkConguration ............................................................................................................... 98
WebServer Start Options ...........................................................................................................99
5 Sizingand Scaling YourServer ........................................................................................................101
64-BitServer ....................................................................................................................................... 101
Processors........................................................................................................................................... 101
Memory .............................................................................................................................................. 102
DriveSpace ......................................................................................................................................... 102
Contents
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