Date: Wed, 19 Apr 2000 11:26:26 -0400 (EDT) From: Zhihui Zhang <zzhang@cs.binghamton.edu> To: freebsd-hackers@freebsd.org Subject: Questions of the syncer process Message-ID: <Pine.SOL.4.21.0004191113350.26080-100000@sol.cs.binghamton.edu>
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I have two questions related to the syncer process that replaces the old update process: (1) The syncer process is waken up once a second (it sleeps on lbolt). If I have more than 30 mounted filesystems, then each filesystem's dirty data will stay more than 30 seconds. If I only have a couple of filesystems, then the syncer will run more frequenty than the old update process. Is this a good choice? (2) I do not understand why vfs_msync(mp, MNT_NOWAIT) is called before VFS_SYNC(mp, MNT_LAZY,...). It seems to me that the latter includes the work done by the former. Thanks for any insights into this subject. -Zhihui To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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