RVM

Turn off bounds checks and null checks in uninterruptible code

Details

  • Type: Sub-task Sub-task
  • Status: Open Open
  • Priority: Major Major
  • Resolution: Unresolved
  • Affects Version/s: None
  • Fix Version/s: 3.2
  • Component/s: Compiler: Optimizing
  • Labels:
    None
  • Number of attachments :
    2

Description

By turning off null checks and bounds checks we can reduce the amount of code in the boot image slightly.

I have attached two patches. One to fix the nobounds/nonullcheck options that failed for me due to missing guards, and a second to turn off the checks within uninterruptible code.

My very quick test for production indicated we could save a little over 1MB.

  1. Text File
    fix-nochecks.patch
    18/Sep/07 2:23 AM
    0.8 kB
    Daniel Frampton
  2. Text File
    uninterruptible-checks.patch
    18/Sep/07 2:23 AM
    1 kB
    Daniel Frampton

Issue Links

depends upon

Improvement - An improvement or enhancement to an existing feature or task. RVM-115 Finish removing all uses of LogicallyUninterruptible

  • Minor - Minor loss of function, or other problem where easy workaround is present.
  • Open - The issue is open and ready for the assignee to start work on it.

Activity

Ascending order - Click to sort in descending order
Hide
Permalink
Ian Rogers added a comment -

Is there any reason these patches haven't been applied?

Show
Ian Rogers added a comment - Is there any reason these patches haven't been applied?
Hide
Permalink
David Grove added a comment -

It's not correct to do so until the pragma uninterruptible/unpreemtpible mess is cleaned up. There's too much sloppy use of the NoWarn backdoors.

Show
David Grove added a comment - It's not correct to do so until the pragma uninterruptible/unpreemtpible mess is cleaned up. There's too much sloppy use of the NoWarn backdoors.
Hide
Permalink
Ian Rogers added a comment -

Ugh, can we create some issues to get this cleaned up. I noticed there weren't any in JIRA or even on sourceforge.

Show
Ian Rogers added a comment - Ugh, can we create some issues to get this cleaned up. I noticed there weren't any in JIRA or even on sourceforge.
Hide
Permalink
David Grove added a comment -

See RVM 115. http://jira.codehaus.org/browse/RVM-115

Show
David Grove added a comment - See RVM 115. http://jira.codehaus.org/browse/RVM-115

People

  • Assignee:
    Unassigned
    Reporter:
    Daniel Frampton
Vote (0)
Watch (0)

Dates

  • Created:
    Updated: