diff options
Diffstat (limited to 'open_issues/time.mdwn')
| -rw-r--r-- | open_issues/time.mdwn | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/open_issues/time.mdwn b/open_issues/time.mdwn index ab239aef..13cb0a41 100644 --- a/open_issues/time.mdwn +++ b/open_issues/time.mdwn @@ -51,7 +51,7 @@ GNU time's *elapsed* value is off by some factor. user 0m0.000s sys 0m0.010s -As above; also here all the running time should be attriuted to *user* time. +As above; also here all the running time should be attributed to *user* time. This is probably a [[!taglink open_issue_gnumach]]. @@ -67,3 +67,16 @@ While testing some [[performance/IPC_virtual_copy]] performance issues: <tschwinge> And I can confirm that with dd if=/dev/zero of=/dev/null bs=4k running, a parallel sleep 10 takes about 20 s (on strauss). + +# 2013-03-30/31 + +Investigating time's `configure`, a difference of the output between Linux and +Hurd shows: + + -checking for wait3 that fills in rusage... yes + +checking for wait3 that fills in rusage... no + +This causes a different code path in `resuse.c` to be used; such code path does +not get a define for `HZ`, which is then defined with a fallback value of 60. + +[[!debbug 704283]] has been filed with a fix for this no-wait3 case. |