Re: [PATCH] Add kallsyms_lookup() result cache

From: Herbert Xu
Date: Fri Jun 18 2004 - 23:52:42 EST


Albert Cahalan <albert@xxxxxxxxxxxx> wrote:
>
>> Are you saying your top reads /proc/kallsyms on each redisplay?
>> That sounds completely wrong - it should only read the file once
>> and cache it and then look the numbers it is reading from wchan
>> in the cache.
>>
>> Doing the cache in the kernel is the wrong place. This should be fixed
>> in user space.
>
> No way, because:
>
> 1. kernel modules may be loaded or unloaded at any time

We seem to have coped alright under 2.4.
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Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
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