From: "roland" <for_spam@gmx.de>
To: Henrik Nordstrom <hno@marasystems.com>
Cc: user-mode-linux-devel@lists.sourceforge.net,
uml-user <user-mode-linux-user@lists.sourceforge.net>
Subject: [uml-devel] Re: bug in COW? - Re: [uml-user] uml 2.6.0-test9 crash
Date: Fri, 28 Nov 2003 21:42:34 +0100 [thread overview]
Message-ID: <01df01c3b5f0$27898bd0$2000000a@schlepptopp> (raw)
In-Reply-To: Pine.LNX.4.44.0311280938340.3315-100000@filer.marasystems.com
hi!
> bonnie++ is a good one..
thanks - will give it a try. i already were aware of bonnie, but i thought it
was just a benchmark program.
> Maybe, maybe not. What does vmstat on the host report while you run this?
here is the output.
the i/o stops, but uml still consumes cpu.
regards
roland
2 1 0 273464 33628 156188 0 0 40 1732 1208 64200 42 58 0 0
1 0 0 269412 33628 160104 0 0 3916 16 1988 56447 23 28 48 0
1 0 0 265368 33628 164024 0 0 3920 0 1984 11543 6 12 82 0
1 0 0 265372 33628 164024 0 0 0 0 1006 43904 38 62 0 0
2 0 0 262528 33628 166768 0 0 2744 0 1699 71773 42 58 0 0
1 0 0 255804 33628 173280 0 0 6512 0 2632 73736 40 60 0 0
1 1 0 249364 33628 179512 0 0 6232 0 2570 102489 46 54 0 0
1 2 0 246336 33700 182364 0 0 2856 5800 1992 95142 45 55 0 0
1 2 0 246332 33700 182368 0 0 4 4340 1211 43884 39 60 1 0
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 3 0 246324 33700 182376 0 0 8 6364 1238 4349 4 9 87 0
0 3 0 246308 33700 182392 0 0 16 7548 1289 294 0 1 99 0
0 3 0 246304 33700 182396 0 0 4 2104 1293 279 0 1 99 0
0 3 0 246296 33700 182404 0 0 8 1716 1271 267 0 2 98 0
1 0 0 243456 33700 185148 0 0 2744 68 1764 3261 7 19 74 0 <---!
1 0 0 243440 33700 185148 0 0 0 0 1003 56 34 66 0 0
1 0 0 243440 33700 185148 0 0 0 0 1002 54 33 67 0 0
1 0 0 243440 33700 185148 0 0 0 0 1002 54 31 69 0 0
1 0 0 243440 33700 185148 0 0 0 0 1002 52 33 67 0 0
1 0 0 243440 33700 185148 0 0 0 0 1002 47 29 71 0 0
1 1 0 243396 33744 185148 0 0 0 3240 1116 75 31 69 0 0
1 0 0 243396 33744 185148 0 0 0 0 1006 53 34 66 0 0
1 0 0 243396 33744 185148 0 0 0 0 1003 57 27 73 0 0
1 0 0 243396 33744 185148 0 0 0 0 1003 52 33 67 0 0
1 0 0 243396 33744 185148 0 0 0 0 1003 48 32 68 0 0
1 0 0 243396 33744 185148 0 0 0 0 1003 47 34 66 0 0
----- Original Message -----
From: "Henrik Nordstrom" <hno@marasystems.com>
To: "roland" <for_spam@gmx.de>
Cc: <user-mode-linux-devel@lists.sourceforge.net>; "uml-user" <user-mode-linux-user@lists.sourceforge.net>
Sent: Friday, November 28, 2003 9:39 AM
Subject: Re: bug in COW? - Re: [uml-user] uml 2.6.0-test9 crash
> On Fri, 28 Nov 2003, roland wrote:
>
> > after making the rootfs-clone a cow-filesystem (by adding ubd2=rootfsclone.cow,rootfsclone.img),
> > the freeze happened again when doing some heavy writing. so - am i allowed to assume, that
> > there is a bug in the copy-on-write code?
>
> Maybe, maybe not. What does vmstat on the host report while you run this?
>
> > btw: could anybody recommend a general filesystem stresstest-tool which does the worst to
> > filesytems, you can do (besides formatting or overwriting)? :D
>
> bonnie++ is a good one..
>
> Regards
> Henrik
>
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next prev parent reply other threads:[~2003-11-28 20:38 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <5.1.0.14.2.20031127102518.02675b90@mail.inboxprotection.com>
2003-11-27 21:06 ` [uml-devel] uml 2.6.0-test9 crash roland
2003-11-27 21:33 ` [uml-devel] Re: [uml-user] " Sven 'Darkman' Michels
2003-11-27 21:54 ` roland
2003-11-27 23:50 ` Henrik Nordstrom
2003-11-28 1:18 ` [uml-devel] bug in COW? - " roland
2003-11-28 1:28 ` [uml-devel] " Erik Walthinsen
2003-11-28 2:11 ` [uml-devel] How to copy COW files to another machine across the network? Shao-Lin Joseph Chung
2003-11-28 8:49 ` Henrik Nordstrom
2003-11-30 21:22 ` roland
2003-11-30 21:37 ` Henrik Nordstrom
2003-11-30 23:31 ` Nigel Cunningham
2003-12-01 9:12 ` roland
2003-12-06 0:04 ` [uml-user] " Jeff Dike
2003-12-06 0:05 ` Jeff Dike
2003-11-28 9:13 ` Geert Uytterhoeven
2003-11-29 9:24 ` Richard Potter
2003-12-06 0:05 ` [uml-devel] Re: bug in COW? - Re: [uml-user] uml 2.6.0-test9 crash Jeff Dike
2003-11-28 8:39 ` Henrik Nordstrom
2003-11-28 20:42 ` roland [this message]
2003-11-28 21:35 ` Henrik Nordstrom
2003-11-30 2:29 ` roland
2003-11-30 7:47 ` Henrik Nordstrom
2003-11-30 8:23 ` Lynn Kerby
2003-11-30 11:36 ` roland
2003-12-06 0:05 ` Jeff Dike
2003-12-06 9:41 ` Henrik Nordstrom
2003-12-06 18:18 ` Jeff Dike
2003-12-06 23:32 ` Henrik Nordstrom
2003-12-08 1:20 ` roland
2003-12-08 19:21 ` Jeff Dike
2003-12-07 10:53 ` [uml-devel] updating 2.6 to merge 2.4 changes(was: Re: bug in COW? - Re: [uml-user] uml 2.6.0-test9 crash) BlaisorBlade
2003-12-08 20:42 ` Jeff Dike
2003-12-08 21:32 ` Henrik Nordstrom
2003-12-08 23:50 ` Jeff Dike
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