Re: It is possible to put write cache on ssd?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Bill Davidsen <davidsen <at> tmr.com> writes:


> Actually playing with that now. I got an Intel SATA 40GB SSD, and I am 
> trying various combinations of things to put on it. One thing which I 
> hoped would benefit was to put a f/s journal on SSD and then use the 
> option to push all through the journal (data=journal) in hopes that it 
> would then free the RAM needed for cache and thus speed operation.
> 
>

Probably it is due to two things:

1) to see advantages you have to test in a server situation where a 
lot of thread are writing AND others are reading. So in this case
 writes to hard disk can be delayed a lot to give less latency to reads.
2) A lot of tuning is due to force linux to keep data on journal
 as long as it can.



--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux RAID Wiki]     [ATA RAID]     [Linux SCSI Target Infrastructure]     [Linux Block]     [Linux IDE]     [Linux SCSI]     [Linux Hams]     [Device Mapper]     [Device Mapper Cryptographics]     [Kernel]     [Linux Admin]     [Linux Net]     [GFS]     [RPM]     [git]     [Yosemite Forum]


  Powered by Linux