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Bug #13107

closed

pageout should use hrtime instead of lbolt

Added by Joshua M. Clulow almost 3 years ago. Updated over 2 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Joshua M. Clulow
Category:
kernel
Start date:
Due date:
% Done:

100%

Estimated time:
Difficulty:
Medium
Tags:
Gerrit CR:
890
External Bug:

Description

The paging routines in uts/common/os/vm_pageout.c presently make use of a mixture of ddi_get_lbolt(9F) and gethrtime(9F) for time keeping. A lot of this code has existed for a long time, but the algorithm is relatively simple and there doesn't appear to be a reason not to just deal in nanosecond intervals throughout the entire mechanism.

Related issues

Related to illumos gate - Bug #13097: improve VM tunables for modern systemsClosedJoshua M. Clulow

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 #1

Updated by Electric Monk almost 3 years ago

  • Gerrit CR set to 890
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 #2

Updated by Joshua M. Clulow over 2 years ago

See #13097 for testing notes.

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 #3

Updated by Joshua M. Clulow over 2 years ago

  • Related to Bug #13097: improve VM tunables for modern systems added
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 #4

Updated by Electric Monk over 2 years ago

  • Status changed from New to Closed
  • % Done changed from 0 to 100

git commit 2d9166aee5315081107056f3d663e4adee4c1c2a

commit  2d9166aee5315081107056f3d663e4adee4c1c2a
Author: Joshua M. Clulow <josh@sysmgr.org>
Date:   2021-02-03T00:41:05.000Z

    13097 improve VM tunables for modern systems
    13107 pageout should use hrtime instead of lbolt
    Reviewed by: Robert Mustacchi <rm@fingolfin.org>
    Reviewed by: Hans Rosenfeld <rosenfeld@grumpf.hope-2000.org>
    Approved by: Richard Lowe <richlowe@richlowe.net>

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