Re: [firebird-support] Re: Bad surprise on performance

2015-01-05 Thread André Knappstein knappst...@beta-eigenheim.de [firebird-support]
Thank you very much for the advice, Hannes. I did not think of this too well. But of course this sounds very logical. I will re-configure the server to match the most popular database page size (I have 6 different databases). I will first consult different papers I have from

[firebird-support] Re: Bad surprise on performance

2015-01-03 Thread Dmitry Yemanov dim...@users.sourceforge.net [firebird-support]
03.01.2015 03:08, André Knappstein wrote: I created a test table on both old and new server to play with updates and inserts (~ 150.000 records) Performance with 2.5.3 x64 on Win2008 is constantly changing, but at best its some 8 seconds and worst even 2 minutes! Performance with

Re: [firebird-support] Re: Bad surprise on performance

2015-01-03 Thread André Knappstein knappst...@beta-eigenheim.de [firebird-support]
Thank you Dmitry. Seems I found the solution to the real problem parallel to your posting of the message (BBU failure report resetting cache parameters). The difference on old hardware (2.9 - 3.2) seconds probably is due to inaccuracy in the very simple test methods. And, yes,

Re: [firebird-support] Re: Bad surprise on performance

2015-01-03 Thread André Knappstein knappst...@beta-eigenheim.de [firebird-support]
Operations (new Server) Read : 2.247 Writes : 5.960 Fetches: 2.476.240 Marks : 807.922 Operations (old Server) Read : 8.516 Writes : 6.084 Fetches: 1.602.243 Marks : 582.584

Re: [firebird-support] Re: Bad surprise on performance

2015-01-03 Thread Hannes Streicher hstreic...@gmx.de [firebird-support]
Guten Tag André Knappstein knappst...@beta-eigenheim.de [firebird-support], am Samstag, 3. Januar 2015 um 10:45 schrieben Sie: Stripe size is 64K, btw. much too big , best size for a stripset ist same as DB Page Size Strip Set 64Kb means that the controller will read and write Blocks of

Re: [firebird-support] Re: Bad surprise on performance

2015-01-02 Thread André Knappstein knappst...@beta-eigenheim.de [firebird-support]
Hello Vlad, It is sure Raid 0 with 3 * 600 GB Toshiba SAS. I only installed the server today. I did not use the LSI Raid BIOS for configuration but the server view installation kit from the producer. So I will have to look up stripe size and BBU status. Next week I will also apply a

[firebird-support] Re: Bad surprise on performance

2015-01-02 Thread hv...@users.sourceforge.net [firebird-support]
Hi, André ! [Old] Server 2003 x86 no service packs Xeon with 4 GB RAM Classic 1.5.4 (x86, of course) Raid 0 on 2 * 500 GB SAS (though this is from memory, I should look it up...) [new] Server 2008 R2 x64 SP1 Xeon with 8 GB RAM (I will shortly add +8) Classic 2.5.3 x64 Raid 0 on 3 *