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Ben Draper, on IDS 7.30 UC7, saw the pagreads value in onstat -p drop by about 2 million at random times. Rob Burba suggested counter rollover, which Ben ruled out. David Williams noted onstat -z resets counters. Ben began resetting daily but still saw pagreads fall by around 2 million within an hour. Unresolved.
Auto-generated by Claude from the posts below — may be imperfect; read the full thread.
Ben Draper — — source: Informix-list mailing list archive (1991-1998)
Hi,
Has anyone noticed a problem with the pagreads stat in onstat -p being
decremented in what looks like a random way?
I parse the output of onstat -p regularly and store the output into a csv
file. I've noticed that after an unpredictable amount of time the value
gets decremented by 2 million !!! Isn't this a cumulative stat?
Since I gather this information regularly, I have only been zeroing out my
stats once a week. I'm going to try to do this daily and see if this makes
any difference.
I'm on IDS 7.30 UC7
↪ replying to Ben Draper
Rob Burba — — source: Informix-list mailing list archive (1991-1998)
2 million or 2 billion? You may be seeing the counter roll over.
cheers
j.
Ben Draper <bdraper@mathworks.com> wrote in message
news:8gha2k$sja$1@news.mathworks.com...
> Hi,
>
> Has anyone noticed a problem with the pagreads stat in onstat -p being
> decremented in what looks like a random way?
>
> I parse the output of onstat -p regularly and store the output into a csv
> file. I've noticed that after an unpredictable amount of time the value
> gets decremented by 2 million !!! Isn't this a cumulative stat?
>
> Since I gather this information regularly, I have only been zeroing out my
> stats once a week. I'm going to try to do this daily and see if this
makes
> any difference.
>
> I'm on IDS 7.30 UC7
>
>
>
>
>
↪ replying to Rob Burba
Ben Draper — — source: Informix-list mailing list archive (1991-1998)
I assure you that the counter is not rolling over.
I'm seeing the counter go from (1 example) 5602893 to 3536618 and then the
number gradually climbs as you'd expect it to...
Rob Burba wrote in message ...
>2 million or 2 billion? You may be seeing the counter roll over.
>
>cheers
>j.
>Ben Draper <bdraper@mathworks.com> wrote in message
>news:8gha2k$sja$1@news.mathworks.com...
>> Hi,
>>
>> Has anyone noticed a problem with the pagreads stat in onstat -p being
>> decremented in what looks like a random way?
>>
>> I parse the output of onstat -p regularly and store the output into a csv
>> file. I've noticed that after an unpredictable amount of time the value
>> gets decremented by 2 million !!! Isn't this a cumulative stat?
>>
>> Since I gather this information regularly, I have only been zeroing out
my
>> stats once a week. I'm going to try to do this daily and see if this
>makes
>> any difference.
>>
>> I'm on IDS 7.30 UC7
>>
>>
>>
>>
>>
>
>
↪ replying to Ben Draper
David Williams — — source: Informix-list mailing list archive (1991-1998)
In article <8ghgs8$59j$1@news.mathworks.com>, Ben Draper
<bdraper@mathworks.com> writes
>I assure you that the counter is not rolling over.
>
>I'm seeing the counter go from (1 example) 5602893 to 3536618 and then the
>number gradually climbs as you'd expect it to...
>
>
onstat -z resets the counter to 0.
--
David Williams
↪ replying to David Williams
Ben Draper — — source: Informix-list mailing list archive (1991-1998)
I'm resetting the stats daily now.
On Friday, stats were reset at 6:00 am.
by 3:27pm the pagreads value had reached 7190253
at 3:28pm the pagreads value was 5122344
again,
by 7:03pm pagreads had reached 6044502
at 7:04pm pagreads was now 3985017
This seems really bizzarre to me...
Ben
David Williams wrote in message ...
>In article <8ghgs8$59j$1@news.mathworks.com>, Ben Draper
><bdraper@mathworks.com> writes
>>I assure you that the counter is not rolling over.
>>
>>I'm seeing the counter go from (1 example) 5602893 to 3536618 and then the
>>number gradually climbs as you'd expect it to...
>>
>>
> onstat -z resets the counter to 0.>
>--
>David Williams
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