I'd recommend looking at the AMQStore documentation -
http://activemq.apache.org/amq-message-store.html
parameters to look at increasing would be the indexPageSize and
particularly the indexBinSize - as I suspect the bottle neck is the
persistent index.
cheers,
Rob
On 20 Apr 2008, at 19:53, vanyatka wrote:
Hi, Rob
I've been doing some testing with ActiveMQ 5.1, making it receive
messages
as fast as possible. What I noticed was a steady slow down as the
messages
kept coming to AMQ. I have to mention here that I intentionally didn't
consume messages from the queue (so it kept growing) to see the
storage
capacity of AMQ.
Below are partial results of sending messages over 100MB network using
OpenWire to AMQ 5.1 running on FreeBSD.
The trend of performance decrease suggests a possible bottleneck in
the
persistence module (which was Kaha by default). Obviously, I cannot
assert
this for sure.
Even though Kaha is supposed to be the fastest storage mechanism
supplied
with AMQ, are there any configuration options to fine-tune it for
heavy
loads?
This is a part of the more broad issue "how to make AMQ accept more
messages
per unit of time, thus reduce number of nodes in a cluster".
1000 msgs for 1516 msec. 659.0 msgs p/sec
2000 msgs for 2579 msec. 775.0 msgs p/sec
3000 msgs for 3657 msec. 820.0 msgs p/sec
4000 msgs for 4735 msec. 844.0 msgs p/sec
5000 msgs for 5875 msec. 851.0 msgs p/sec
6000 msgs for 8032 msec. 747.0 msgs p/sec
7000 msgs for 9110 msec. 768.0 msgs p/sec
8000 msgs for 10204 msec. 784.0 msgs p/sec
9000 msgs for 11360 msec. 792.0 msgs p/sec
10000 msgs for 12454 msec. 802.0 msgs p/sec
11000 msgs for 13579 msec. 810.0 msgs p/sec
12000 msgs for 14688 msec. 816.0 msgs p/sec
13000 msgs for 15875 msec. 818.0 msgs p/sec
14000 msgs for 17282 msec. 810.0 msgs p/sec
15000 msgs for 18500 msec. 810.0 msgs p/sec
16000 msgs for 19735 msec. 810.0 msgs p/sec
17000 msgs for 20922 msec. 812.0 msgs p/sec
18000 msgs for 22172 msec. 811.0 msgs p/sec
19000 msgs for 23391 msec. 812.0 msgs p/sec
20000 msgs for 24750 msec. 808.0 msgs p/sec
21000 msgs for 25954 msec. 809.0 msgs p/sec
22000 msgs for 28125 msec. 782.0 msgs p/sec
23000 msgs for 29282 msec. 785.0 msgs p/sec
24000 msgs for 30750 msec. 780.0 msgs p/sec
25000 msgs for 31969 msec. 782.0 msgs p/sec
26000 msgs for 33172 msec. 783.0 msgs p/sec
27000 msgs for 34454 msec. 783.0 msgs p/sec
28000 msgs for 35875 msec. 780.0 msgs p/sec
29000 msgs for 37235 msec. 778.0 msgs p/sec
30000 msgs for 39875 msec. 752.0 msgs p/sec
31000 msgs for 41250 msec. 751.0 msgs p/sec
32000 msgs for 42547 msec. 752.0 msgs p/sec
33000 msgs for 43813 msec. 753.0 msgs p/sec
34000 msgs for 45297 msec. 750.0 msgs p/sec
35000 msgs for 46610 msec. 750.0 msgs p/sec
36000 msgs for 48329 msec. 744.0 msgs p/sec
37000 msgs for 49672 msec. 744.0 msgs p/sec
38000 msgs for 51000 msec. 745.0 msgs p/sec
39000 msgs for 52688 msec. 740.0 msgs p/sec
40000 msgs for 54422 msec. 734.0 msgs p/sec
41000 msgs for 56047 msec. 731.0 msgs p/sec
42000 msgs for 57391 msec. 731.0 msgs p/sec
43000 msgs for 60719 msec. 708.0 msgs p/sec
44000 msgs for 61907 msec. 710.0 msgs p/sec
45000 msgs for 63422 msec. 709.0 msgs p/sec
46000 msgs for 64766 msec. 710.0 msgs p/sec
47000 msgs for 66360 msec. 708.0 msgs p/sec
48000 msgs for 67813 msec. 707.0 msgs p/sec
49000 msgs for 71563 msec. 684.0 msgs p/sec
50000 msgs for 72750 msec. 687.0 msgs p/sec
51000 msgs for 74204 msec. 687.0 msgs p/sec
52000 msgs for 75704 msec. 686.0 msgs p/sec
53000 msgs for 77266 msec. 685.0 msgs p/sec
54000 msgs for 78563 msec. 687.0 msgs p/sec
55000 msgs for 80125 msec. 686.0 msgs p/sec
56000 msgs for 82016 msec. 682.0 msgs p/sec
57000 msgs for 83500 msec. 682.0 msgs p/sec
58000 msgs for 85047 msec. 681.0 msgs p/sec
59000 msgs for 86516 msec. 681.0 msgs p/sec
60000 msgs for 90422 msec. 663.0 msgs p/sec
61000 msgs for 91641 msec. 665.0 msgs p/sec
62000 msgs for 93032 msec. 666.0 msgs p/sec
63000 msgs for 94579 msec. 666.0 msgs p/sec
64000 msgs for 95782 msec. 668.0 msgs p/sec
rajdavies wrote:
So long story short - use the default message store (AMQ) in
version 5!
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