[mythtv-users] thrashing hard drive

John Drescher drescherjm at gmail.com
Wed Sep 24 21:19:06 UTC 2008


>>> You can increase the buffer in linux so it writes to disk less
>>> frequently (storing it in memory until it writes to disk), but if
>>> you're swapping already, it wouldn't make much sense to start using
>>> *more* memory.
>>
>> Where is this parameter for buffer size?  I assume this is a global
>> parameter then and would apply to all disks?
>
> I was talking about using bdflush to decrease the amount of time data
> is written to the disk.
>
> There are some performance tuning hints here:
> http://www.gossamer-threads.com/lists/mythtv/users/22005#22005
>

Isn't this for 2.4 kernels?

Here is some 2.6 tuning advice:
http://www.dba-oracle.com/t_tuning_linux_kernel_2_6_oracle.htm

John


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