[haiku-bugs] Re: [Haiku] #5777: Kernel starts paging when writing to slow media
- From: "pulkomandy" <trac@xxxxxxxxxxxx>
- Date: Thu, 30 Jan 2014 08:56:02 -0000
#5777: Kernel starts paging when writing to slow media
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Reporter: axeld | Owner: axeld
Type: bug | Status: assigned
Priority: normal | Milestone: R1/beta1
Component: System/Kernel | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
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Comment (by pulkomandy):
Well, I still get problems with copying a large amount of files to an USB
drive. The current situation is apparently the file cache will eat all
memory, and the low resource manager struggles to free some of it, using
one CPU core at 100% for this.
Trying to launch applications will fail with an "out of memory" error.
Activity Monitor shows small values for "memory use" (485MB), "cache
memory" (263MB), and "block cache" (12MB). I guess the file cache is using
the remaining 7.5GB?
There are noticeable lockups of writing to disk (I'm doing this using
rsync -avhPX). Apparently it will stay locked, waiting for the low
resource manager to free some cache space...
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Ticket URL: <https://dev.haiku-os.org/ticket/5777#comment:9>
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