paging help is needed
From: hopehope_123 (hopehope_123_at_yahoo.com)
Date: 07/22/05
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Date: 21 Jul 2005 23:02:13 -0700
Hi ,
According to the sar -B output , my system does:
04:54:42 PM pgpgin/s pgpgout/s activepg inadtypg inaclnpg inatarpg
04:54:45 PM 26112.33 94.33 186898 56296 3362 49311
04:54:48 PM 24086.00 30.33 185125 61120 3363 49921
04:54:51 PM 20554.00 125.33 182891 67445 3362 50739
page operations per second.
1. What is the metric used in this output? The man page says the metric
is 'pages' but what is the page size? How can i get this info?
2. Does The value in pgpgin/s contain all type of paging activity?
I mean file paging, application paging , anonymus paging. (In sun
solaris , vmstat -p shows detailed paging information )
3. I use directio so basically what i know is no page cache is used for
data pages. Is this output a proof that files are cached although i use
directio?
Kind Regards,
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