Messages in this thread | | | From | (H.J. Lu) | Subject | Re: pre-patch-2.0.31 try_to_free_page() messages | Date | Sun, 1 Jun 1997 10:29:55 -0700 (PDT) |
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> > From: alan@lxorguk.ukuu.org.uk (Alan Cox) > Date: Sun, 1 Jun 1997 15:47:49 +0100 (BST) > > > Is SMP supposed to be stable now? > > SMP should be the same from 2.0.18 upwards. The performance issues > under heavy I/O load (losing serial chars, slipping clock) aren not going to > change in the 2.0.x series. I do intend to put Leonards memory handling tweaks > into the code however. > > I assume you're referring to my SMP deadlock patch? > > My 2.0.30 SMP deadlock patch has solved the problem 100% for my systems but > some other people still reported problems. However, despite Ingo's posting a > clever new deadlock detection patch, no one has reported tracking down any of > the remaining deadlocks. >
2.0.30 plus Leonard's patch has been running very well on my heavily loaded SMP machine. Sometimes my load average is over 40. I was doing heavy SCSI disk I/O on 4 SCSI drives at the same time. Also I was building gcc, binutils, XFree86 on a NFS client machine accessing the sources on my SMP machine which is my NFS server.
But with linux 2.1.39/2.1.40, my SMP machine crashed/locked up very easily under my heavy load.
H.J.
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