[linux-lvm] LVM Overhead

[Chris Cox]

Tomasz Chmielewski wrote:
> Chris Cox schrieb:
...
>> I check my local drives, they all use the default 1024....
>> Is setting the read ahead that big of a deal with just LVM?
>> I would think if it's an issue, it's an issue everywhere.
> 
> For me, the default was 256.
> 
> I use that big readahead after a bit of benchmarking; perhaps it's very
> specific to my setup.
> 
> 

Oh... I didn't say it wouldn't benefit, I just know in my case
it's not a HUGE win... but it is significant, significant enough
for me to want to experiment with the values and doing some
benchmarking.

256?  Whoa... that seems really low.


-- 
Chris Cox
Sr. Unix Sys Admin