主機: IBM,9179-MHB
OS: 5300-11-05-1036
現象: 系統登陸很慢,使用topas看到lo0接口的流量很大,察看errpt,發現沒有任何能影響系統響應的錯誤,但是發現了系統內核跟蹤工具trace,
IBM的內核跟蹤工具,只有使用 trcstop 殺掉該進程,以前電信出現過,今天重溫一下 :)
剛開始使用kill嘗試多次都殺不掉該進程,後man察看trace
man trace
-a
Runs the trace daemon asynchronously (i.e. as a background task). Once trace has been started this way, you can use
the trcon, trcoff, and commands to respectively start tracing, stop tracing, or exit the trace session. These
commands are implemented as links to trace.
使用trcstop終於kill掉該進程,系統速度也有明顯改善