Re: [Firebird-devel] [firebird-support] Re: Sweep process too many writes to disc

2013-01-08 Thread liviuslivius
> i move info from support list what i provide there > 1. I use Super Server 64 bit Certainly super does not write pages to disk as active as classic, but... > 2. DB Page Size is 16k and DefaultDBPageCache is 65536 (i disable system > cache in fbconfig) that's just 1Gb cache. We GC pages during

Re: [Firebird-devel] [firebird-support] Re: Sweep process too many writes to disc

2013-01-08 Thread Thomas Steinmaurer
>> i move info from support list what i provide there >> 1. I use Super Server 64 bit > > Certainly super does not write pages to disk as active as classic, but... > >> 2. DB Page Size is 16k and DefaultDBPageCache is 65536 (i disable system >> cache in fbconfig) > > that's just 1Gb cache. We GC pa

Re: [Firebird-devel] [firebird-support] Re: Sweep process too many writes to disc

2013-01-08 Thread Dmitry Yemanov
08.01.2013 21:00, liviusliv...@poczta.onet.pl wrote: > > I understand that i can get more reads becouse of "small" cache but why > writes? Every read into a cache full of dirty pages (modified by sweep) implies a page write, because the engine needs to reuse some page buffer for reading. Dmitr