25 Oct
2013
25 Oct
'13
11:38 a.m.
Lists wrote:
On 10/24/2013 03:48 PM, Karanbir Singh wrote:
On 10/23/2013 10:30 AM, Morgan Cox wrote:
If you want SSD + MDRAID you need to use a 3.8+ kernel to have TRIM.
The speed difference between the stock 2.6.32 -> 3.10 kernel with SSD + MDRAID is insane.
has someone quantified what this 'insane' amounts to ?
Going from HDD to SSD's gave us better than a 95% reduction in query times for complex queries using PostgreSQL on otherwise identical hardware. I wouldn't have believed it had I not seen it directly, for myself.
interesting datapoint for HDD vs SSD, but what about kernel versions? When using SSDs, did you need to use 3.8+ kernels as suggested in the quoted post, or do you use stock? thanks