Re: dbt2 NOTPM numbers

From: Markus Schiltknecht <markus(at)bluegap(dot)ch>
To: Heikki Linnakangas <heikki(at)enterprisedb(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: dbt2 NOTPM numbers
Date: 2007-06-04 15:26:38
Message-ID: 46642F2E.3080509@bluegap.ch
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Hi,

Heikki Linnakangas wrote:
> There's clearly something wrong. The response times are ridiculously
> high, they should be < 5 seconds (except for stock level transaction) to
> pass a TPC-C test. I wonder if you built any indexes at all?

Hm.. according to the output/5/db/plan0.out, all queries use index
scans, so that doesn't seem to be the problem.

> The configuration I'm running here has 3 data drives, and I'm getting
> reasonable results with ~100 warehouses, at ~1200 noTPM.

Thanks, that's exactly the one simple and very raw comparison value I've
been looking for. (Since most of the results pages of (former?) OSDL are
down).

I'll run a bonnie++ first. As the CPUs seem to be idle most of the time
(see the vmstat.out below), I'm suspecting the RAID or disks.

Regards

Markus

procs -----------memory---------- ---swap-- -----io---- -system--
----cpu----
r b swpd free buff cache si so bi bo in cs us sy
id wa
2 2 329512 1289384 8 2680704 0 0 4 1 1 2 0
0 100 0
0 48 329512 1733016 8 2083400 0 0 1789 2265 553 1278 1
1 63 35
2 81 329512 492052 8 3194532 0 0 6007 10135 1025 3291 6
1 21 71
0 8 329512 153360 8 3457936 0 0 6321 11919 1093 4581 7
2 12 79
0 9 329512 150188 8 3433380 0 0 2083 5078 707 2197 2
1 35 62
0 6 329512 148412 8 3408748 0 0 1001 2888 526 1203 1
0 34 64
0 27 329512 152212 8 3379736 0 0 2281 5166 733 2320 3
1 18 79
0 11 329512 152560 8 3355940 0 0 1837 4028 626 1738 2
1 35 63
0 14 329512 149268 8 3334912 0 0 1674 3836 630 1619 2
1 31 67
0 6 329512 152916 8 3311552 0 0 1404 3017 568 1372 1
0 57 41
0 13 329688 149492 8 3313200 0 0 1687 4178 650 1644 2
1 29 69
0 84 329688 153480 8 3309684 0 0 812 3790 641 2669 1
1 22 76
0 18 329688 149232 8 3314032 0 0 87 2147 511 2414 0
0 16 83
3 20 329688 149196 8 3314648 0 0 756 1854 496 1044 1
0 52 47

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