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- From: herr@iti.informatik.th-darmstadt.de (Gabor Herr)
- Subject: Subject: Linux 0.98.4 wastes 2MB of memory
- Sender: news@news.th-darmstadt.de (The News System)
- Message-ID: <1992Nov12.082647.20599@news.th-darmstadt.de>
- Date: Thu, 12 Nov 1992 08:26:47 GMT
- Nntp-Posting-Host: sun2.iti.informatik.th-darmstadt.de
- Organization: TH Darmstadt
- Lines: 48
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- Path: iti.informatik.th-darmstadt.de!herr
- Newsgroups: comp.os.linux
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- From: herr@iti.informatik.th-darmstadt.de (Gabor Herr)
- Organization: TU Darmstadt
- Keywords:
-
- Hello everybody,
-
- I just detected some strange things with the new kernel 0.98.4: the memory
- manager seems not to use all the existing physical memory, although
- my machine is under heavy load (X running with several xterms and other clients,
- gcc compiling xfig with -O2). There are always at least 2MB of memory left
- unused, so processes have to do a lot of paging, and everything gets slower :-(.
-
- Here is what `free' reports about memory usage:
-
- > total used cache free shared
- > memory: 7404 3308 2048 2048 944
- > swap0: 8156 2132 6024 0
-
- The 2048 blocks seem to be a magic limit, after I started another compilation
- (there were 2 gcc's running with -O2 at the same time), free still reports
- 2048 blocks free, and a lot more swap space in use.
-
- > total used cache free shared
- > memory: 7404 4952 404 2048 792
- > swap0: 8156 3976 4180 0
-
- Maybe this is a bug in the mm-code; I saw Linus did a lot of changes in it.
- Needless to say, the last kernel (pl3) had most of the time less than
- 2048 blocks free mem...
-
- Gabor
-
- Just for info:
-
- Machine: 486/33, 256k cache
- Memory: 8MB mem + 8MB swap
- Kernel: 0.98.pl4 from tsx-11
- Free: ps.0.97.6 from sunsite + 0.98.patches from Linus
-
- --
- ############################################################################
- Gabor Herr Email: herr@iti.informatik.th-darmstadt.de
- Computer Science Department
- Technical University of Darmstadt, Germany
-