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In one of our linux server the kswapd process is consuming high cpu approx 100% and server is getting slow . And also load on the server is also on high side. So can you please suggest me how i can get rid of this problem.
This is a natural consequence of the situation in your other two threads.
This is a symptom of a wider problem. Just as loadavg is.
Too much memory in use (maybe SGA, who knows), thrashing is causing kswapd to have to move too any pages in/out, the disk subsystem is obviously under-configured, so I/O is kept waiting, so your loadavg goes up.
Problems keeps piling up.
You cannot directly directly affect the kswapd CPU%. Like I said, it's a symptom.
Fix the real problem(s).
This is a natural consequence of the situation in your other two threads.
This is a symptom of a wider problem. Just as loadavg is.
Too much memory in use (maybe SGA, who knows), thrashing is causing kswapd to have to move too any pages in/out, the disk subsystem is obviously under-configured, so I/O is kept waiting, so your loadavg goes up.
Problems keeps piling up.
You cannot directly directly affect the kswapd CPU%. Like I said, it's a symptom.
Fix the real problem(s).
Thanks for the reqply.
So can you please let me know which process causing the kswap and load to go high on the server and how i can avoid this in future.
Also, a lot of processes are in state S http://slack-linux.blogspot.com.au/2...ate-codes.html.
Basically, as above, you need to find out what your Oracle DB/processes are actually doing and fix the root cause, not keep trying to fix the symptoms.
See post#2 by syg00
Also, a lot of processes are in state S http://slack-linux.blogspot.com.au/2...ate-codes.html.
Basically, as above, you need to find out what your Oracle DB/processes are actually doing and fix the root cause, not keep trying to fix the symptoms.
See post#2 by syg00
Thanks Chris.
So we need to check with the oracle database. So that is waht causing the real problem.??
There's no way to tell from this distance ... however, it appears that your system is almost exclusively running Oracle, so start there ..
Note that you need to check the app programs calling Oracle as well as the Oracle DB procs.
In fact, you could start by killing off all the progs talking to Oracle and just run Oracle to see what happens.
Its interesting to see that you have only 8 users but 800+ process; ie each one is (probably) generating 100 processes ... sounds odd to me.
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