On 02/07/2014 02:40 PM, Christopher Wood wrote:
On Fri, Feb 07, 2014 at 10:49:29AM -0700, Brent Bice wrote:
(SNIP)
I've got a few OpenLDAP instances that I use for writing log data
to, so write performance is critical, but since I'm building it from
log data, absitively, posolutely,
Thanks, Ulrich.
That made me do a bit searching, there's a nice summary of some of the ext4
performance options here:
http://blog.smartlogicsolutions.com/2009/06/04/mount-options-to-improve-ext4-file-system-performance/
Definitely cool ideas (but more academic for us specifically) - I'd be a
bit
On 02/05/2014 11:45 AM, Quanah Gibson-Mount wrote:
Ok. I had some wierd perf issues with Ubuntu10 and Ubuntu12. I was
able to resolve them on Ubuntu12 by upgrading to a newer 3.x kernel
(currently 3.10.11-031011-generic on my Ubuntu12 box).
Also, it isn't necessary to use ext4 (I use ext2 for
On 02/04/2014 02:58 AM, Andrew Eross wrote:
Hello all,
I've been Google'ing around and searching the archives, but I haven't
quite been able to find an answer, so I wanted to ask the list.
I've been experimenting with OpenLDAP adds to see how quickly we can get
data inserted into the DB.
Brent Bice wrote:
On 02/05/2014 11:45 AM, Quanah Gibson-Mount wrote:
Ok. I had some wierd perf issues with Ubuntu10 and Ubuntu12. I was
able to resolve them on Ubuntu12 by upgrading to a newer 3.x kernel
(currently 3.10.11-031011-generic on my Ubuntu12 box).
Also, it isn't necessary to use
On Fri, Feb 07, 2014 at 10:49:29AM -0700, Brent Bice wrote:
(SNIP)
I've got a few OpenLDAP instances that I use for writing log data
to, so write performance is critical, but since I'm building it from
log data, absitively, posolutely, guaranteed perfect DB consistency
isn't. I can always
Hi guys,
Ulrich - thanks for the suggestions - btrfs in particular is certainly
worth a shot.
Quanah - very cool to hear about the 12.04 kernel and ext2 suggestions.
thanks!
I've just run some new tests on a similar machine with 12.04.4 LTS and a
newly installed 3.11.0-15-generic x86_64 kernel.
Hi!
Another suggestion: Dependingon your secondary storage you could experiment
with mount option barrier=0: If you have a RAID controller with battery
backed-up cache (that guarantees that any data confirmed written to the host
will acually be written in the end) it makes no sense to force
Hi!
It's complete nonsense, but did you try to put a database in a RAM disk? This
would show the delay that actual secondary storage access costs in addition to
primary storage access.
Regards,
Ulrich
Andrew Eross er...@locatrix.com schrieb am 04.02.2014 um 21:52 in
Nachricht
--On Tuesday, February 04, 2014 6:52 PM -0200 Andrew Eross
er...@locatrix.com wrote:
Thanks, Dieter, Quanah.
I've been doing some experimenting with those mdb options.
I ran a few tests with inserting 10,000 records, wiping the DB in
between, and changing just the one option at a time:
Hi Quanah,
Ubuntu 10.04 LTS
Linux 2.6.32-43-generic-pae #97-Ubuntu SMP Wed Sep 5 16:59:17 UTC 2012 i686
GNU/Linux
The latest OpenLDAP 2.4.39
All of those tests done with the mdb backend, of course, and the actual
file system is ext4
It's a fairly stock 10.04 system, no special config/kernel
--On Wednesday, February 05, 2014 1:30 PM -0200 Andrew Eross
er...@locatrix.com wrote:
Hi Quanah,
Ubuntu 10.04 LTS
Linux 2.6.32-43-generic-pae #97-Ubuntu SMP Wed Sep 5 16:59:17 UTC 2012
i686 GNU/Linux
The latest OpenLDAP 2.4.39
All of those tests done with the mdb backend, of course, and
Andrew Eross er...@locatrix.com schrieb am 05.02.2014 um 16:30 in
Nachricht
CAL_tfFf2qW5BcT=Xs4uFOSUO=wL0AN=9cyfs+d-xyplitmz...@mail.gmail.com:
Hi Quanah,
Ubuntu 10.04 LTS
Linux 2.6.32-43-generic-pae #97-Ubuntu SMP Wed Sep 5 16:59:17 UTC 2012 i686
GNU/Linux
The latest OpenLDAP 2.4.39
Hello all,
I've been Google'ing around and searching the archives, but I haven't quite
been able to find an answer, so I wanted to ask the list.
I've been experimenting with OpenLDAP adds to see how quickly we can get
data inserted into the DB.
I'm using Ubuntu 10.04, and I've tried both the
Hello all,
I've been Google'ing around and searching the archives, but I haven't
quite been able to find an answer, so I wanted to ask the list.
I've been experimenting with OpenLDAP adds to see how quickly we can
get data inserted into the DB.
Thanks, Chris.
Yeah, I hear you on that, but sorry, to be more specific, I was running
this test to get an idea of performance for regular LDAP use, and slapadd
is a purely offline solution.
It would be helpful for a restore, of course, but not equivalent to when
our application will be
Am Tue, 4 Feb 2014 10:25:15 +
schrieb Chris Card ctc...@hotmail.com:
Hello all,
I've been Google'ing around and searching the archives, but I
haven't quite been able to find an answer, so I wanted to ask the
list.
I've been experimenting
Hi Dieter,
I definitely read the man entries - for hdb it's more complicated, of
course, but with mdb, my simple config came directly from the online docs.
My understanding is that there's really nothing needed/suggested for tuning
parameters for mdb.
I've seen there's a 'checkpoint' option
Am Tue, 4 Feb 2014 10:26:40 -0200
schrieb Andrew Eross er...@locatrix.com:
Hi Dieter,
I definitely read the man entries - for hdb it's more complicated, of
course, but with mdb, my simple config came directly from the online
docs.
My understanding is that there's really nothing
--On Tuesday, February 04, 2014 10:26 AM -0200 Andrew Eross
er...@locatrix.com wrote:
I've seen there's a 'checkpoint' option along with 'dbnosync' which can
perhaps increase performance at the expense of reliability, but I
wouldn't want to use that in production.
The db env flags for mdb
Thanks, Dieter, Quanah.
I've been doing some experimenting with those mdb options.
I ran a few tests with inserting 10,000 records, wiping the DB in between,
and changing just the one option at a time:
Base-line, no extra options: 4m8s
With writemap enabled: 8m55s
With writemap+mapasync
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