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From: | Mike Westall |
Subject: | Re: TERRIBLE sort performance in RedHat 9.0 |
Date: | Fri, 08 Oct 2004 22:53:21 -0400 |
User-agent: | Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040113 |
the LC_ALL=C appeared to make no diff. Its not a critical problem to me since the RH 7.2 sort works just fine on the RH 9.0 systems. RH-9.0 has been out so long I was amazed that a google search of for redhat sort performance yielded no hits. Maybe no one sorts anymore! top shows 100% CPU util and almost no time spent in kernel state so it doesn't appear that RH sort has decided that 4 MB files must be sorted using auxilliary disk files. Paul Eggert wrote:
Mike Westall <address@hidden> writes:Any ideas whats up with this????What happens when you compile and use the latest stable coreutils release instead? That way, we can try to isolate whether your problem is specific to Red Hat's changes to "sort". ftp://ftp.gnu.org/gnu/coreutils/coreutils-5.2.1.tar.gz Another thought: what happens if you set LC_ALL=C in your environment? It's conceivable that Red Hat 9's locale support is slower, and that the older sort doesn't really support locales other than C.
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