[Bug 742248] Re: time reports incorrect max rss
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On 2011-05-07T14:07:30+00:00 Michael wrote:
Description of problem:
GNU time can print out the maximum RSS usage of its subprocess. The
ru_maxrss value returned by the wait4 syscall is in units of kilobytes,
but GNU time incorrectly treats this as a number of pages, multiplying
the value by 4 before displaying it.
Version-Release number of selected component (if applicable):
time-1.7-37.fc12.i686
How reproducible: Always
Steps to Reproduce:
1. /usr/bin/time -f %M perl -e '"x" x 400 x 1024 x 1024'
Actual results: A bit over 160, indicating maximum RSS usage of 1.6 GB.
This is not even possible on my system as it only has 1 GB of physical RAM.
Expected results: Approximately 40, since Perl should only be
allocating around 400 MB.
Additional info:
Applying strace to the above command, it is clear that time is
multiplying the ru_maxrss value returned by wait4:
$ strace -ve wait4 /usr/bin/time -f %M perl -e '"x" x 400 x 1024 x 1024'
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, {ru_utime={0, 146977},
ru_stime={0, 676897}, ru_maxrss=411356, ru_ixrss=0, ru_idrss=0, ru_isrss=0,
ru_minflt=102901, ru_majflt=1, ru_nswap=0, ru_inblock=176, ru_oublock=0,
ru_msgsnd=0, ru_msgrcv=0, ru_nsignals=0, ru_nvcsw=1, ru_nivcsw=40}) = 7459
--- {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7459, si_status=0,
si_utime=14, si_stime=68} (Child exited) ---
1645424
According to the getrusage(2) manpage:
ru_maxrss (since Linux 2.6.32)
This is the maximum resident set size used (in kilobytes). [...]
I've attached a simple patch that simply skips the "pages to kilobytes"
conversion for this field.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/comments/2
On 2011-05-07T14:09:53+00:00 Michael wrote:
Created attachment 497533
Do not incorrectly convert ru_maxrss
Reply at:
https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/comments/3
On 2011-05-11T12:52:21+00:00 Petr wrote:
All Fedoras affected (time-1.7).
Reply at:
https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/comments/5
On 2011-05-11T13:44:39+00:00 Petr wrote:
Thank you for the report, fixed time version will be pushed into Fedoras
soon.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/comments/6
On 2011-05-11T16:16:56+00:00 Petr wrote:
Fixed in time-1.7-39.fc16 for F16.
Reply at:
https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/comments/7
On 2011-05-11T16:27:09+00:00 Fedora wrote:
time-1.7-39.fc15 has been submitted as an update for Fedora 15.
https://admin.fedoraproject.org/updates/time-1.7-39.fc15
Reply at:
https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/comments/8
On 2011-05-11T16:28:01+00:00 Fedora wrote:
time-1.7-38.fc14 has been submitted as an update for Fedora 14.
https://admin.fedoraproject.org/updates/time-1.7-38.fc14
Reply at:
https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/comments/9
On 2011-05-11T16:28:16+00:00 Fedora wrote:
time-1.7-38.fc13 has been submitted as an update for Fedora 13.
https://admin.fedoraproject.org/updates/time-1.7-38.fc13
Reply at:
https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/comments/10
On 2011-05-13T23:02:07+00:00 Fedora wrote:
Package time-1.7-38.fc14:
* should fix your issue,
* was pushed to the Fedora 14 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing time-1.7-38.fc14'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/time-1.7-38.fc14
then log in and leave karma (feedback).
Reply at:
https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/comments/11
On 2011-05-19T04:58:41+00:00 Fedora wrote:
time-1.7-39.fc15 has been pushed to the Fedora 15 stable repository. If
problems still persist, please make note of it in this bug report.
Reply at:
[Bug 742248] Re: time reports incorrect max rss
** Changed in: time (Debian) Status: New = Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/742248 Title: time reports incorrect max rss To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 742248] Re: time reports incorrect max rss
** Changed in: time (Debian) Status: Unknown = New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/742248 Title: time reports incorrect max rss To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 742248] Re: time reports incorrect max rss
** Bug watch added: Debian Bug tracker #649402 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=649402 ** Also affects: time (Debian) via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=649402 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/742248 Title: time reports incorrect max rss To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 742248] Re: time reports incorrect max rss
** Changed in: time (Ubuntu) Status: In Progress = Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/742248 Title: time reports incorrect max rss To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 742248] Re: time reports incorrect max rss
What is the way ahead with this. I submitted the bug a year ago, and it's lame that nobody except Peter cares about it. Is there something I can do to speed it up? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/742248 Title: time reports incorrect max rss To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 742248] Re: time reports incorrect max rss
Hello? Is anybody watching this? I can not commit the attached patch myself, so ... Can I ask someone who can, ... would you be that kind and do that, please? Thank you! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/742248 Title: time reports incorrect max rss To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 742248] Re: time reports incorrect max rss
Attaching a patch to the oneiric version of package time. ** Patch added: time.patch https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/+attachment/2592869/+files/time.patch ** Changed in: time (Ubuntu) Status: Confirmed = In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/742248 Title: time reports incorrect max rss To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 742248] Re: time reports incorrect max rss
The attachment time.patch of this bug report has been identified as being a patch. The ubuntu-reviewers team has been subscribed to the bug report so that they can review the patch. In the event that this is in fact not a patch you can resolve this situation by removing the tag 'patch' from the bug report and editing the attachment so that it is not flagged as a patch. Additionally, if you are member of the ubuntu- sponsors please also unsubscribe the team from this bug report. [This is an automated message performed by a Launchpad user owned by Brian Murray. Please contact him regarding any issues with the action taken in this bug report.] ** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/742248 Title: time reports incorrect max rss To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/time/+bug/742248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 742248] Re: time reports incorrect max rss
There's a patch on the fedora bugzilla for this issue: https://bugzilla.redhat.com/show_bug.cgi?id=702826 ** Bug watch added: Red Hat Bugzilla #702826 https://bugzilla.redhat.com/show_bug.cgi?id=702826 ** Also affects: time (Fedora) via https://bugzilla.redhat.com/show_bug.cgi?id=702826 Importance: Unknown Status: Unknown ** Changed in: time (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/742248 Title: time reports incorrect max rss -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 742248] Re: time reports incorrect max rss
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/742248 Title: time reports incorrect max rss -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
