[CentOS] which kernel do people use?

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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.