Tuning 64-Bit Systems For Performance Benchmarking - Sun Microsystems Sun GlassFish Enterprise Server 2.1 Tuning Manual

Tuning UltraSPARC® T1–Based Systems
TABLE 5–2
Parameter
rlim_fd_max
hires_tick
sq_max_size
ip:ip_squeue_bind
ip:ip_squeue_fanout
ipge:ipge_taskq_disable
ipge:ipge_tx_ring_size
ipge:ipge_srv_fifo_depth
ipge:ipge_bcopy_thresh
ipge:ipge_dvma_thresh
ipge:ipge_tx_syncq
tcp_conn_req_max_q
tcp_conn_req_max_q0
tcp_max_buf
tcp_cwnd_max
tcp_xmit_hiwat
tcp_recv_hiwat
Note that the IPGE driver version is 1.25.25.
104 Sun GlassFish Enterprise Server 2.1 Performance Tuning Guide • January 2009
Tuning 64–bit Systems for Performance Benchmarking
Scope Default Value
65536
/etc/system
/etc/system
2
/etc/system
/etc/system
/etc/system
/etc/system
/etc/system
/etc/system
/etc/system
128
ndd /dev/tcp
1024
ndd /dev/tcp
ndd /dev/tcp
ndd/dev/tcp
8129
ndd /dev/tcp
8129
ndd /dev/tcp
Tuned Value Comments
260000 Process open file descriptors limit;
should account for the expected load
(for the associated sockets, files, pipes
if any).
1
0 Controls streams driver queue size;
setting to 0 makes it infinite so the
performance runs won't be hit by lack
of buffer space. Set on clients too.
Note that setting sq_max_size to 0
might not be optimal for production
systems with high network traffic.
0
1
0
2048
2048
384
384
1
3000
3000
4194304
2097152
400000 To increase the transmit buffer.
400000 To increase the receive buffer.