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* Anyone tried Flashcache with PostgreSQL?
@ 2011-02-28 19:09 Josh Berkus <josh@agliodbs.com>
0 siblings, 1 reply; 5+ messages in thread
From: Josh Berkus @ 2011-02-28 19:09 UTC (permalink / raw)
To: pgsql-performance
Hey,
Does anyone have the hardware to test FlashCache with PostgreSQL?
http://perspectives.mvdirona.com/2010/04/29/FacebookFlashcache.aspx
I'd be interested to hear how it performs ...
--
-- Josh Berkus
PostgreSQL Experts Inc.
http://www.pgexperts.com
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: Anyone tried Flashcache with PostgreSQL?
@ 2011-03-02 15:29 Robert Haas <robertmhaas@gmail.com>
parent: Josh Berkus <josh@agliodbs.com>
0 siblings, 2 replies; 5+ messages in thread
From: Robert Haas @ 2011-03-02 15:29 UTC (permalink / raw)
To: Josh Berkus <josh@agliodbs.com>; +Cc: pgsql-performance
On Mon, Feb 28, 2011 at 2:09 PM, Josh Berkus <josh@agliodbs.com> wrote:
> Does anyone have the hardware to test FlashCache with PostgreSQL?
>
> http://perspectives.mvdirona.com/2010/04/29/FacebookFlashcache.aspx
>
> I'd be interested to hear how it performs ...
It'd be a lot more interesting if it were a write-through cache rather
than a write-back cache, wouldn't it?
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: Anyone tried Flashcache with PostgreSQL?
@ 2011-03-03 00:20 Samuel Gendler <sgendler@ideasculptor.com>
parent: Robert Haas <robertmhaas@gmail.com>
1 sibling, 0 replies; 5+ messages in thread
From: Samuel Gendler @ 2011-03-03 00:20 UTC (permalink / raw)
To: Robert Haas <robertmhaas@gmail.com>; +Cc: Josh Berkus <josh@agliodbs.com>; pgsql-performance
On Wed, Mar 2, 2011 at 7:29 AM, Robert Haas <robertmhaas@gmail.com> wrote:
> On Mon, Feb 28, 2011 at 2:09 PM, Josh Berkus <josh@agliodbs.com> wrote:
> > Does anyone have the hardware to test FlashCache with PostgreSQL?
> >
> > http://perspectives.mvdirona.com/2010/04/29/FacebookFlashcache.aspx
> >
> > I'd be interested to hear how it performs ...
>
> It'd be a lot more interesting if it were a write-through cache rather
> than a write-back cache, wouldn't it?
>
Well, it is open source...
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: Anyone tried Flashcache with PostgreSQL?
@ 2011-03-03 08:15 Arjen van der Meijden <acmmailing@tweakers.net>
parent: Robert Haas <robertmhaas@gmail.com>
1 sibling, 1 reply; 5+ messages in thread
From: Arjen van der Meijden @ 2011-03-03 08:15 UTC (permalink / raw)
To: pgsql-performance
On 2-3-2011 16:29 Robert Haas wrote:
> On Mon, Feb 28, 2011 at 2:09 PM, Josh Berkus<josh@agliodbs.com> wrote:
>> Does anyone have the hardware to test FlashCache with PostgreSQL?
>>
>> http://perspectives.mvdirona.com/2010/04/29/FacebookFlashcache.aspx
>>
>> I'd be interested to hear how it performs ...
>
> It'd be a lot more interesting if it were a write-through cache rather
> than a write-back cache, wouldn't it?
That's what bcache tries to accomplish, both read and write cache.
It also appears to aim to be more widely usable, rather than the
relatively specific requirements the facebook variant is designed for.
http://bcache.evilpiepirate.org/
They seem to try and combine both the dedicated ZIL and L2ARC
functionality from ZFS in one block device based caching layer.
Best regards,
Arjen
^ permalink raw reply [nested|flat] 5+ messages in thread
* Re: Anyone tried Flashcache with PostgreSQL?
@ 2011-03-07 15:48 Cédric Villemain <cedric.villemain.debian@gmail.com>
parent: Arjen van der Meijden <acmmailing@tweakers.net>
0 siblings, 0 replies; 5+ messages in thread
From: Cédric Villemain @ 2011-03-07 15:48 UTC (permalink / raw)
To: Arjen van der Meijden <acmmailing@tweakers.net>; +Cc: pgsql-performance
2011/3/3 Arjen van der Meijden <acmmailing@tweakers.net>:
> On 2-3-2011 16:29 Robert Haas wrote:
>>
>> On Mon, Feb 28, 2011 at 2:09 PM, Josh Berkus<josh@agliodbs.com> wrote:
>>>
>>> Does anyone have the hardware to test FlashCache with PostgreSQL?
>>>
>>> http://perspectives.mvdirona.com/2010/04/29/FacebookFlashcache.aspx
>>>
>>> I'd be interested to hear how it performs ...
>>
>> It'd be a lot more interesting if it were a write-through cache rather
>> than a write-back cache, wouldn't it?
>
> That's what bcache tries to accomplish, both read and write cache.
> It also appears to aim to be more widely usable, rather than the relatively
> specific requirements the facebook variant is designed for.
>
> http://bcache.evilpiepirate.org/
>
> They seem to try and combine both the dedicated ZIL and L2ARC functionality
> from ZFS in one block device based caching layer.
Bcache looks more interesting, yes. Still it is not production ready
and get some dangerous caveeat with administration tasks (for example
remounting devices without their caches open the door of all evils).
--
Cédric Villemain 2ndQuadrant
http://2ndQuadrant.fr/ PostgreSQL : Expertise, Formation et Support
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-- links below jump to the message on this page --
2011-02-28 19:09 Anyone tried Flashcache with PostgreSQL? Josh Berkus <josh@agliodbs.com>
2011-03-02 15:29 ` Robert Haas <robertmhaas@gmail.com>
2011-03-03 00:20 ` Samuel Gendler <sgendler@ideasculptor.com>
2011-03-03 08:15 ` Arjen van der Meijden <acmmailing@tweakers.net>
2011-03-07 15:48 ` Cédric Villemain <cedric.villemain.debian@gmail.com>
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