Small typo:
dd if=infile ibs=32k obs=4k | gzip | dd ibs=4k obs=32k of=outfile.gz
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Applications that cause high memory paging ( Page Out In ) Unix Windows
I seem to recall that when I ran "gzip" or "compress" on Solaris 10, the
Page Out value in "vmstat 2" would surge to above 12000.
However, on Windows, "Winzip" or gzip triggers high CPU without much
of paging activity as I don't see changes in "Physical Memory" & "Kernel
Memory" changes under Performance tab in Task Manager.
Q1:
Anyone know of any application that could trigger high paging in Windows?
Any media or backup server that show this behavior?
Q2:
What about in Unix, any application (besides the gzip / compress) that would
trigger high paging : I just wanted to explain to management that certain
application can cause high memory paging & yet this high paging activity is
considered normal
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by: gheistPosted on 2009-11-01 at 03:16:44ID: 25713317
A2 gzip or bzip2 uses normal file read which is younger than processes in RAM so they get paged out.
If you wrap gzip with dd (dd if=infile ibs=32k obs=4k | gzip | dd ibs=4k obs=32 of=outfile.gz) it behaves a lot better.
A1 - huge excel sheet does fine