Re: sbrk(2), OOM-killer and malloc() overcommit

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To: Vadim Goncharov <vadimnuclight@...>
Cc: freebsd-current@freebsd.org <freebsd-current@...>
Date: Friday, January 4, 2008 - 9:10 pm

On Sat, Jan 05, 2008 at 02:26:53AM +0600, Vadim Goncharov wrote:

Other than your previous post, I don't recall seeing this claim before.
Can you provide references to people stating that they are abandoning
FreeBSD because it doesn't support swap reservation?  I've had a quick
look at can't find anything.  Definitely, no-one considers it enough of
a problem to have raised a PR.


Since you're making the claim, how about _you_ produce the evidence.

In general, swap over-commit is a good idea because it enables you to
get by with far less resources than would otherwise be necessary - I've
disabled swap reservation on some systems at work to allieviate problems
that it was causing and I haven't seen any subsequent issues due to
overcommit being in use.

--=20
Peter Jeremy
Please excuse any delays as the result of my ISP's inability to implement
an MTA that is either RFC2821-compliant or matches their claimed behaviour.
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Messages in current thread:
sbrk(2), OOM-killer and malloc() overcommit, Vadim Goncharov, (Fri Jan 4, 11:08 am)
Re: sbrk(2), OOM-killer and malloc() overcommit, Peter Jeremy, (Fri Jan 4, 3:28 pm)
Re: sbrk(2), OOM-killer and malloc() overcommit, Vadim Goncharov, (Fri Jan 4, 4:26 pm)
Re: sbrk(2), OOM-killer and malloc() overcommit, Peter Jeremy, (Fri Jan 4, 9:10 pm)
Re: sbrk(2), OOM-killer and malloc() overcommit, Vadim Goncharov, (Sat Jan 5, 10:44 am)
Re: sbrk(2), OOM-killer and malloc() overcommit, Dag-Erling Smørgrav, (Mon Jan 7, 10:58 am)
Re: sbrk(2), OOM-killer and malloc() overcommit, Vadim Goncharov, (Mon Jan 7, 12:06 pm)
Re: sbrk(2), OOM-killer and malloc() overcommit, Tim Kientzle, (Fri Jan 4, 1:36 pm)
Re: sbrk(2), OOM-killer and malloc() overcommit, Vadim Goncharov, (Fri Jan 4, 2:32 pm)