Oracle数据库开发(二) Linux下配置使用ProC

在HPUX平台上安装数据库的时候，经常需要去修改kernel参数，通常都是通过SAM去修改，也可以同kctune这个命令去修改。
直接数据kctune可以看到当前的kernel值
[rp4440@/]#kctune
Tunable Value Expression Changes
NSTREVENT 50 Default
NSTRPUSH 16 Default
NSTRSCHED 0 Default
STRCTLSZ 1024 Default
STRMSGSZ 0 Default
acctresume 4 Default
acctsuspend 2 Default
aio_listio_max 256 Default Immed
aio_max_ops 2048 Default Immed
aio_monitor_run_sec 30 Default Immed
aio_physmem_pct 10 Default
aio_prio_delta_max 20 Default Immed
aio_proc_thread_pct 70 Default Immed
aio_proc_threads 1024 Default Immed
aio_req_per_thread 1 Default Immed
。。。。。。。。。。。。。。。。
假设我们要修改aio_max_ops ，目前是2048，修改成4096
可以这样执行
[rp4440@/]#kctune aio_max_ops=4096
WARNING: The automatic 'backup' configuration currently contains the
configuration that was in use before the last reboot of this
system.
==> Do you wish to update it to contain the current configuration
before making the requested change? y
* The automatic 'backup' configuration has been updated.
* The requested changes have been applied to the currently
running system.
Tunable Value Expression Changes
aio_max_ops (before) 2048 Default Immed
(now) 4096 4096

会提示你是否要修改，数据“Y"进行修改，修改后会显示当前值和以前值

from:http://blog.chinaunix.net/u/436/showart_2012114.html