Re: [PATCH v2 0/3] staging: zcache: xcfmalloc support

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 09/15/2011 03:24 PM, Seth Jennings wrote:

> On 09/15/2011 12:29 PM, Dan Magenheimer wrote:
>>> From: Seth Jennings [mailto:sjenning@xxxxxxxxxxxxxxxxxx]
>>> Subject: Re: [PATCH v2 0/3] staging: zcache: xcfmalloc support
>>>


>>
>> Seth, I am still not clear why it is not possible to support
>> either allocation algorithm, selectable at runtime.  Or even
>> dynamically... use xvmalloc to store well-compressible pages
>> and xcfmalloc for poorly-compressible pages.  I understand
>> it might require some additional coding, perhaps even an
>> ugly hack or two, but it seems possible.
> 
> But why do an ugly hack if we can just use a single allocator
> that has the best overall performance for the allocation range
> the zcache requires.  Why make it more complicated that it
> needs to be?
> 
>>


I agree with Seth here: a mix of different allocators for the (small)
range of sizes which zcache requires, looks like a bad idea to me.
Maintaining two allocators is a pain and this will also complicate
future plans like compaction etc.

Thanks,
Nitin

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>


[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux]     [Linux OMAP]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]