Date: Fri, 15 Aug 1997 00:11:40 -0400 (EDT) From: Thomas David Rivers <ponds!rivers@dg-rtp.dg.com> To: ponds!freefall.cdrom.com!freebsd-hackers Subject: Another data point in the slow "rm"s (2.1.7 is *much* faster.) Message-ID: <199708150411.AAA00284@lakes.dignus.com>
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Ok - I've got another interesting item to add. It doesn't seem to matter if you mount the file system async; the rm's appear to be chugging along at just one every 3 to 5 seconds... It seems to be unlinking the files; then seeking someone (the superblock?) and writing something, then seeking back and unlinking the next file, etc... Also - I'm down to about 400 files - it's still taking quite some time... (at 3 to 5 seconds per unlink, with ~20,000 files to remove... well... you get the idea.) Now; and here's the real killer... I booted a 2.1.7 floppy & went to the fixit screen... (exact same machine, just booted a different kernel...) I was able to delete the remaining 300+ files in less than 3 seconds!! Something is *definately* going on in 2.2.1+ that makes unlinking files *very* slow... This is likely what causes my news expiration times to be prohibitive... - Dave Rivers -
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