RE: long checkpoints
Tom,
To clarify, you have a total of 13 (!!!) virtual segments below -- all of
the segments of class "V". There should ideally be just one!! So, take
your current SHMVIRTSIZE from your ONCONFIG file, plus 12 times the SHMADD
value (or 14 times, to use John's good advice), and make THAT number your
new SHMVIRTSIZE in your ONCONFIG. You will have to bounce the instance to
bring in the new value.
HTH,
Paul Mosser
-----Original Message-----
From: John Carlson [mailto:john_carlson@whsmithusa.com]
Sent: Friday, June 13, 2003 2:42 PM
To: informix-list@iiug.org
Subject: Re: long checkpoints
On 13 Jun 2003 14:18:57 -0700, schmotom@yahoo.com (tomL) wrote:
Aaaugh, that might explain a few things . . . .
More than 4 SHM segments on HPUX is DEATH. I think that HPUX 11i
might give a few more, but the first thing I'd do is reset SHMVIRTSIZE
to SHMVIRTSIZE = current value in ONCONFIG + ( ( segments added + 2)
* SHMADD
The + 2 is just a fudge factor, YMMV.
>Paul,
>this is the output from onstat -g seg:
>
>Segment Summary:
>id key addr size ovhd class blkused
>blkfree
>7680 1381386241 80000000 592850944 245712 R* 144714 25
>(shared) 1381386241 a3563000 201334784 6760 V 45433 3721
>46597 1381386242 c2101000 192512 624 M 47 0
>15366 1381386243 c2c0a000 33554432 1640 V 4479 3713
>519 1381386244 c4d30000 33554432 1640 V 3297 4895
>2056 1381386245 c6d30000 33554432 1640 V 982 7210
>9 1381386246 c8d30000 33554432 1640 V 19 8173
>10 1381386247 cad30000 33554432 1640 V 32 8160
>11 1381386248 ccd30000 33554432 1640 V 69 8123
>12 1381386249 ced30000 33554432 1640 V 2332 5860
>79885 1381386250 d0dde000 33554432 1640 V 21 8171
>15 1381386251 d2dde000 33554432 1640 V 352 7840
>16 1381386252 d4dde000 33554432 1640 V 139 8053
>526 1381386253 d6dde000 33554432 1640 V 34 8158
>17 1381386254 d8dde000 33554432 1640 V 243 7949
>Total: - - 1197031424 - - 202193 90051
>
> (* segment locked in memory)
>
>but i am unsure what i am looking for to determine if we have multiple
>virtual memory segments ?
>
>Thanks!
>Tom