Messages in this thread | | | Date | Thu, 21 Jan 1999 19:38:29 +0000 (GMT) | From | Matthew Kirkwood <> | Subject | Re: Tar (but not cp) is incredible slow on certain dirs; request for comments/solution ideas/clues. |
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On Thu, 21 Jan 1999, Dr. Michael Weller wrote:
> I tried using both CPU's or only one (disabling it from the bios). I tried > kernel 2.0.36 and 2.2.0pre7 (always with SMP compiled in (even when only 1 > CPU was used)). I also tried restricting the kernel memory to 64MB (side > note: It appeared (!) to be a little faster with this setting, I assume > handling/searching 1Gig of disk caches is much too slow. If it is not > possible to speed the handling of cache memory up, maybe it is smarter to > allow to set the kernel to use a maximum of n MB of buffer/caches memory.
Which distro and libc? RedHat 5.0 shipped with a broken glibc which couldn't completely disable NIS and NIS+ so when it came across a uid in the filesystem that it didn't know about (like torvalds=1046 :) it broadcast around the network for a nis server to identify the miscreant. And then it waited for 2-3 secs and gave up and stored only the numberic ID in the tar file. And then it went onto the next file...
I suspect that this is your problem.
Matthew.
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