Filter
Top Products
Platform-Specic Issues and Tips
This chapter provides platform-specic tuning tips, and includes the following topics:
■
“Solaris Platform-Specic Issues” on page 89
■
“Solaris File System Tuning” on page 93
■
“Solaris Platform-Specic Performance Monitoring” on page 94
■
“Tuning Solaris for Performance Benchmarking” on page 96
■
“Tuning UltraSPARC T1–Based Systems for Performance Benchmarking” on page 97
Solaris Platform-Specic Issues
This section discusses miscellaneous Solaris-specic issues and tuning tips, and includes the
following topics:
■
“Files Open in a Single Process (File Descriptor Limits)” on page 89
■
“Failure to Connect to HTTP Server” on page 90
■
“Connection Refused Errors” on page 91
■
“Tuning TCP Buering” on page 91
■
“Using the Solaris Network Cache and Accelerator (SNCA)” on page 91
Files Open in a Single Process (File Descriptor Limits)
Dierent platforms each have limits on the number of les that can be open in a single process
at one time. For busy sites, you might need to increase that number. On Solaris systems, control
this limit by setting rlim_fd_max in the /etc/system le. For Solaris 8, the default is 1024,
which you can increase to 65536. For Solaris 9 and 10, the default is 65536, which doesn't need
to be increased.
After making this or any change in the /etc/system le, reboot Solaris to put the new settings
into eect. In addition, if you upgrade to a new version of Solaris, any line added to
/etc/system should be removed and added again only after verifying that it is still valid.
4
CHAPTER 4
89