Date: Tue, 29 Oct 2002 21:46:13 -0800 From: Brooks Davis <brooks@one-eyed-alien.net> To: current@freebsd.org Subject: system pauses after deleting large files Message-ID: <20021029214613.C30957@Odin.AC.HMC.Edu>
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[-- Attachment #1 --] While moving a large (1GB) file from one parition to another today, I noticed an odd, reproducable pause. Basicly you create a large file somewhere and then delete it like so: [9:32pm] brooks@minya (/var/tmp): dd if=/dev/zero of=bigfile bs=1m count=1000 1000+0 records in 1000+0 records out 1048576000 bytes transferred in 92.343828 secs (11355128 bytes/sec) [9:34pm] brooks@minya (/var/tmp): rm bigfile Within the next minute or so, I see a pause where the whole system stops for 5-10 seconds. There is a burst of disk activity accompanying this. It's easiest to observe this in X with some active dock apps or monitors running so you'll see them stop updating. Is this something that cane be fixed or is it just life with softupdates? I ask in part because I'm considering a new backup architecture which will generate files in the range of several 100GB so I'd hate to find out this hang is going to be proporational to file size. -- Brooks -- Any statement of the form "X is the one, true Y" is FALSE. PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE9v3IkXY6L6fI4GtQRApgBAJ0bqSw5BgnQ7ILfL94kYaBZPTofgwCfe33j 2jQbtZK0KW8RMuP+I+Ce2UA= =CK3j -----END PGP SIGNATURE-----help
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