[vlc-devel] [PATCH 2/4] prefetch: Don't activate for preparse

[Steve Lhomme]

On 2019-10-09 9:21, Thomas Guillem wrote:
> 
> 
> On Tue, Oct 8, 2019, at 19:41, Rémi Denis-Courmont wrote:
>> I disagree.
>>
>> This will cause very very small reads, and potentially seeks backward - all
>> ending in ridiculously bad performance.
> 
> How so ? If prefetch is disabled, then the "cache" stream filter will be used.
> 
> cf. in src/input/access.c:
> s = stream_FilterChainNew(s, "prefetch,cache");

So maybe the patch should be done in stream_AccessNew() which has a 
preparsing parameter and only load the cache filter in the 
stream_FilterChain.

> 
>>
>> -- 
>> Реми Дёни-Курмон
>> http://www.remlab.net/
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