Re: [PATCHSET] Linux 2.4.20-jam0

J.A. Magallon
2002-11-30T14:38:18Z

On 2002.11.30 Andrew Morton wrote:
>"J.A. Magallon" wrote:
>>
>> - Orlov inode allocator for 2.4
>
>The Orlov allocator in 2.5 has caused a tremendous performance regression
>in dbench-on-ext3/ordered-on-scsi.
>
>I don't know why yet - I doubt if it's due to the allocator itself - more
>likely an IO scheduling bug in ext3, or a bug in the 2.5 elevator.
>
>There is no such regression on IDE - presumably write caching is covering
>up the problem.
>

Is there any way I can test that ? I have all scsi drives and can
for example remount with 'orlov' or 'oldalloc'...

>So that's something to watch out for.
>
>(where did your Orlov patch from? All the tabs are mangled)
>

See the other answer to previous message...

>You'll need to port this missing bit, which provides the `oldalloc'
>and `orlov' mount options.
>

Thanks, I will add it...
BTW, who puts names to options ? Wouldn't be more intuitive to add options
like 'ialloc_std' or 'ialloc_orlov' ? Too late to change this ?

TIA

--
J.A. Magallon <jamagallon@able.es> \ Software is like sex:
werewolf.able.es \ It's better when it's free
Mandrake Linux release 9.1 (Cooker) for i586
Linux 2.4.20-jam0 (gcc 3.2 (Mandrake Linux 9.1 3.2-4mdk))