Security Camera User Manual

TABLE 4–2 Tuning 64–bit Systems for Performance Benchmarking (Continued)

Parameter Scope Default Value TunedValue Comments

tcp_conn_req_max_q0 ndd /dev/tcp 1024 3000

tcp_max_buf ndd /dev/tcp 4194304

tcp_cwnd_max ndd/dev/tcp 2097152

tcp_xmit_hiwat ndd /dev/tcp 8129 400000 To increase the transmit buer.

tcp_recv_hiwat ndd /dev/tcp 8129 400000 To increase the receive buer.

Note that the IPGE driver version is 1.25.25.

Disk Conguration

If HTTP access is logged, follow these guidelines for the disk:

■

Write access logs on faster disks or attached storage.

■

If running multiple instances, move the logs for each instance onto separate disks as much

as possible.

■

Enable the disk read/write cache. Note that if you enable write cache on the disk, some

writes might be lost if the disk fails.

■

Consider mounting the disks with the following options, which might yield better disk

performance: nologging, directio, noatime.

Network Conguration

If more than one network interface card is used, make sure the network interrupts are not all

going to the same core. Run the following script to disable interrupts:

allpsr=‘/usr/sbin/psrinfo | grep -v off-line | awk ’{ print $1 }’‘

set $allpsr

numpsr=$#

while [ $numpsr -gt 0 ];

shift

numpsr=‘expr $numpsr - 1‘

tmp=1

while [ $tmp -ne 4 ];

/usr/sbin/psradm -i $1

shift

numpsr=‘expr $numpsr - 1‘

Tuning UltraSPARC®T1–Based Systems for Performance Benchmarking

Sun Java System Web Server 7.0 Update 1 Performance Tuning, Sizing, and Scaling Guide •98