Tuning Parameters For /Etc/System; Table B-2 /Etc/System Options; Table B-3 Tcp/Ip Options - Sun Microsystems Sun Java System 2005Q1 Portal Server 6 Planning Manual

Tuning Parameters for /etc/system

Tuning Parameters for /etc/system
Table B-2
study. The changes are applied by appending each to the /etc/system file.
/etc/system Options
Table B-2
/etc/system Option
set rlim_fd_max=<value>
set
tcp:tcp_conn_hash_size=<value>
set autoup=<value>
set tune_t_fsflushr=<value>
set rechoose_interval=<value>
A description of all /etc/system parameters can be found in the Solaris Tunable
Parameters Reference Manual.
Table B-3
parameters that affect most performance on Portal Servers. Recommended values
for these parameters are discussed in the Identity Server Customization and API
Guide.
Table B-3 TCP/IP Options
TCP/IP Options
ndd -set /dev/tcp
tcp_xmit_hiwat 65535
ndd -set /dev/tcp
tcp_recv_hiwat 65535
150 Portal Server 6 2005Q1 • Deployment Planning Guide
is a list of
/etc/system
Description
"Hard" limit on file descriptors that a single process might have open. To override
this limit requires superuser privilege.
Controls the hash table size in the TCP module for all TCP connections.
Along with tune_t_flushr, autoup controls the amount of memory examined for
dirty pages in each invocation and frequency of file system sync operations.
The value of autoup is also used to control whether a buffer is written out from the
free list. Buffers marked with the B_DELWRI flag (file content pages that have
changed) are written out whenever the buffer has been on the list for longer than
autoup seconds.
Increasing the value of autoup keeps the buffers around for a longer time in
memory.
Specifies the number of seconds between fsflush invocations.
Number of clock ticks before a process is deemed to have lost all affinity for the
last CPU it ran on. After this interval expires, any CPU is considered a candidate
for scheduling a thread. This parameter is relevant only for threads in the
timesharing class. Real-time threads are scheduled on the first available CPU.
is a list of TCP kernel tuning parameters. These are known TCP tuning
Description
The default send window size in bytes. The default receive window
size in bytes.
tuning parameters used during the performance