Re: [firebird-support] Firebird 2.5 classic performance issue on linux64

2017-02-28 Thread Andreas Zeller zel...@lux-medien.com [firebird-support]
Hi guys, I'm just responding one more time because I want to mark this as solved for me: Several things did the trick: * Upgrade Firebird to 2.5.7 (apparently there was a subquery bug in 2.5.4 which wasn't fixed in the debian package) - thanks to LiENUS on IRC. * blockdev -setfra

Re: [firebird-support] Firebird 2.5 classic performance issue on linux64

2017-02-27 Thread Andreas Zeller zel...@lux-medien.com [firebird-support]
This is what the fb_lock_print output looks like. Andreas On 27.02.2017 00:25, Andreas Zeller zel...@lux-medien.com [firebird-support] wrote: > > > Hi Sean, > > that's what I am saying. It never really is 'under load'. It is just > taking forever to select a clients data-page. >

Re: [firebird-support] Firebird 2.5 classic performance issue on linux64

2017-02-27 Thread Andreas Zeller zel...@lux-medien.com [firebird-support]
Hi Mark, thanks for the info. Someone already told me that the first message is moderated. It's the first time I joined a yahoo group for a project like that. Most of the open source projects have mailman or some sourceforge stuff setup and you can just post away :) Andreas On 27.02.2017

Re: [firebird-support] Firebird 2.5 classic performance issue on linux64

2017-02-26 Thread Andreas Zeller zel...@lux-medien.com [firebird-support]
Hi Sean, that's what I am saying. It never really is 'under load'. It is just taking forever to select a clients data-page. I would blame bad design and shrug it off, but this was way faster on the ancient w2k server, so I have no idea where it gets stuck. Andreas On 26.02.2017 23:54, 'Leyne,

Re: [firebird-support] Firebird 2.5 classic performance issue on linux64

2017-02-26 Thread Andreas Zeller zel...@lux-medien.com [firebird-support]
Sean, thanks for the response. Answers below. On 26.02.2017 23:52, 'Leyne, Sean' s...@broadviewsoftware.com [firebird-support] wrote: > > > Andreas, > > > - increase page size to 16kB (gbak -> and restore with new pagesize) > > - increased buffers for firebird to use up to 4GB of ram (256kB)

Re: [firebird-support] Firebird 2.5 classic performance issue on linux64

2017-02-26 Thread Andreas Zeller zel...@lux-medien.com [firebird-support]
client. What are your suggesting? Andreas On 26.02.2017 21:31, Dimitry Sibiryakov s...@ibphoenix.com [firebird-support] wrote: > 26.02.2017 21:07, Andreas Zeller zel...@lux-medien.com [firebird-support] > wrote: >> I am still curious about how this might affect performance?

Re: [firebird-support] Firebird 2.5 classic performance issue on linux64

2017-02-26 Thread Andreas Zeller zel...@lux-medien.com [firebird-support]
Hi Dimitry, hi Sean, >Did you check obvious things: direct and reverse DNS resolution for server > host on > client host and both hosts on server host? > > I didn't realize those were obvious things, but connections are being made via the IP. So there's no name-resolution delay. I just

Re: [firebird-support] Firebird 2.5 classic performance issue on linux64

2017-02-26 Thread Andreas Zeller zel...@lux-medien.com [firebird-support]
Hi Sean, first off, thanks for the quick response. answers below. On 26.02.2017 20:14, 'Leyne, Sean' s...@broadviewsoftware.com [firebird-support] wrote: > > > Andreas, > > > - increase page size to 16kB (gbak -> and restore with new pagesize) > > - increased buffers for firebird to use up to

[firebird-support] Firebird 2.5 classic performance issue on linux64

2017-02-26 Thread Andreas Zeller zel...@lux-medien.com [firebird-support]
Hi everyone, I'll try and provide as many details as possible, so this message is going to be a little bit longer, but here goes: I encountered a bit of trouble migrating a firebird server from an ancient w2k SBS to a powerful debian-based DL380 server. I'll share my story, so people facing