Re: [Firebird-devel] Reason for slow CREATE DATABASE in FB 3 (Linux)

2011-12-16 Thread Alex Peshkoff
On 12/16/11 13:39, Adriano dos Santos Fernandes wrote: > On 16/12/2011 05:24, Vlad Khorsun wrote: > So now we're spending time while the database is not even completely > created. While we can restore previous behavior (put FW ON flag at header page when database is created

Re: [Firebird-devel] Reason for slow CREATE DATABASE in FB 3 (Linux)

2011-12-16 Thread Adriano dos Santos Fernandes
On 16/12/2011 05:24, Vlad Khorsun wrote: So now we're spending time while the database is not even completely created. >>> While we can restore previous behavior (put FW ON flag at header page >>> when database is created but create db file with this flag switched off) i >>> prefer

Re: [Firebird-devel] Reason for slow CREATE DATABASE in FB 3 (Linux)

2011-12-15 Thread Vlad Khorsun
>>> So now we're spending time while the database is not even completely >>> created. >> >> While we can restore previous behavior (put FW ON flag at header page >> when database is created but create db file with this flag switched off) i >> prefer >> to ask - are we really want to maintain

Re: [Firebird-devel] Reason for slow CREATE DATABASE in FB 3 (Linux)

2011-12-15 Thread Adriano dos Santos Fernandes
On 15-12-2011 18:11, Vlad Khorsun wrote: >> As I said before, ext4 performance with FW=ON is much slower than ext3, >> but I now found something new. >> >> I've verified that with FB 2.5, TCS times was ok (0s - 3s), and only >> with FB 3 they are very bad (first test takes 16s, then 12s, 8s, 7s, 7s

Re: [Firebird-devel] Reason for slow CREATE DATABASE in FB 3 (Linux)

2011-12-15 Thread Vlad Khorsun
> As I said before, ext4 performance with FW=ON is much slower than ext3, > but I now found something new. > > I've verified that with FB 2.5, TCS times was ok (0s - 3s), and only > with FB 3 they are very bad (first test takes 16s, then 12s, 8s, 7s, 7s, > etc) > > What I found is that: > > Time

[Firebird-devel] Reason for slow CREATE DATABASE in FB 3 (Linux)

2011-12-14 Thread Adriano dos Santos Fernandes
All, As I said before, ext4 performance with FW=ON is much slower than ext3, but I now found something new. I've verified that with FB 2.5, TCS times was ok (0s - 3s), and only with FB 3 they are very bad (first test takes 16s, then 12s, 8s, 7s, 7s, etc) What I found is that: Times was bad only