Date: Mon, 11 May 1998 10:13:27 +0930 From: Greg Lehey <grog@lemis.com> To: FreeBSD Hackers <hackers@FreeBSD.ORG> Subject: Strange VM behaviour Message-ID: <19980511101327.F7546@freebie.lemis.com>
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I'm currently monitoring performance on a system running 2.2.5-RELEASE, and have found a strange behaviour in the following vmstat output. This particular machine has 128 MB of memory, which seems to be more than ample. On the fifth line of the output, however, the number of pages scanned, normally 0 and never > 10, hits 3005. This is accompanied by an increase of 5700 pages of free memory. What could have caused this? Greg > procs memory page disks faults cpu > r b w avm fre flt re pi po fr sr s0 s1 in sy cs us sy id > 1 3 0 66248 16752 116 0 0 0 103 6 6 0 298 605 82 12 13 75 > 0 4 0 66300 16748 11 0 0 0 0 0 45 0 354 701 126 4 15 81 > 0 3 0 65768 16760 36 0 0 0 21 0 3 0 297 377 72 4 12 84 > 0 3 0 64636 16764 125 0 0 0 97 0 0 0 298 652 124 19 15 67 > 0 3 0 63884 39556 726 2 0 0 712 3005 1 0 298 516 133 18 23 59 > 0 3 0 64472 39560 3 0 0 0 2 0 0 0 392 306 57 3 10 86 > 0 3 0 64472 39536 5 1 0 0 0 0 0 0 270 131 32 1 8 91 > 0 3 0 64264 39772 101 1 0 0 107 0 10 0 292 404 51 4 13 83 > 0 3 0 65396 39772 1 0 0 0 0 0 0 0 276 173 25 3 10 88 > 0 3 0 66656 39732 20 0 0 0 2 0 0 0 272 302 45 3 11 86 -- See complete headers for address and phone numbers finger grog@lemis.com for PGP public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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