ndd -set /dev/tcp tcp_max_buf 4194304
ndd -set /dev/tcp tcp_cwnd_max 2097152
ndd -set /dev/tcp tcp_recv_hiwat 400000
ndd -set /dev/tcp tcp_xmit_hiwat 400000
Network Configuration
Since the tests used multiple network interfaces, it was important to make sure that all the
network interfaces were not going to the same core. Network interrupts were enabled on one
strand and disabled on the remaining three strand of a core using the following script:
allpsr=
‘
/usr/sbin/psrinfo | grep -v off-line | awk ’{ print $1 }’
‘
set $allpsr
numpsr=$#
while [ $numpsr -gt 0 ];
do
shift
numpsr=
‘
expr $numpsr - 1
‘
tmp=1
while [ $tmp -ne 4 ];
do
/usr/sbin/psradm -i $1
shift
numpsr=
‘
expr $numpsr - 1
‘
tmp=
‘
expr $tmp + 1
‘
done
done
The following example shows
psrinfo
output before running the script:
# psrinfo | more
0
on-line
since 12/06/2006 14:28:34
1
on-line
since 12/06/2006 14:28:35
2
on-line
since 12/06/2006 14:28:35
3
on-line
since 12/06/2006 14:28:35
4
on-line
since 12/06/2006 14:28:35
5
on-line
since 12/06/2006 14:28:35
.................
The following example shows
psrinfo
output after running the script:
0
on-line
since 12/06/2006 14:28:34
1
no-intr
since 12/07/2006 09:17:04
2
no-intr
since 12/07/2006 09:17:04
3
no-intr
since 12/07/2006 09:17:04
4
on-line
since 12/06/2006 14:28:35
Configuration and Tuning
Sun Java System Web Server 7.0 Update 1 Performance Tuning, Sizing, and Scaling Guide •
106
Содержание Sun Java System Web Server 7.0
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