In message <Law14-F97JswFCHOzyf0000896a_at_hotmail.com>, "Ahmed Al-Hindawi" writes : >>If your system is spending a lot of time moving data to and from swap when >>it is not memory-starved, or if it is stalling memory allocations that it >>should be able to fulfill from free RAM, that's a concern. > >That is exactly it. I emphaises th words " when it is not memory-starved ". >It isn't memory starved. > >Also I get 150Mb frequently of swap disk space, whilst still having a >complete third of my memory free!! > >I can understand everyones view on this, that the swap algorithim is swaping >pre-emtively. But 150MB?? Is that what is called a low level of swaping?? Programs like cp(1) uses mmap(2) to copy things, so if you cp(1) a big file, it is not uncommon for some programs to end up on swap. Until they are used again, they will not get paged in. I often see the getty's for the vty's and similar junk on my swap space. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk_at_FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.Received on Fri Jul 25 2003 - 23:04:35 UTC
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