Oracle Solaris System Administration (MOSC)

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Solaris 10: “Page cache” utilization is very high

edited Jan 25, 2019 6:10AM in Oracle Solaris System Administration (MOSC) 1 commentAnswered ✓

Hello,

What does "Page cache" stand for? Why is it so large?

And why page cache utilizing RAM instead of swap memory ?.

root@SBR-KHI-FE-03 # echo "::memstat" | mdb -k

Page Summary Pages MB  %Tot

------------ ----------------  ----------------  ----

Kernel 175482 1370   17%

Anon 194879 1522   19%

Exec and libs 10895 85    1%

Page cache 513960 4015   49%

Free (cachelist) 150762 1177   14%

Free (freelist) 2598 20    0%

Total 1048576 8192

Thanks

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