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

[Thomas Guillem]

On Wed, Oct 9, 2019, at 11:36, Rémi Denis-Courmont wrote:
> Then this change is plain dumb. Cache is terrible on slow networks.

I tested it and concluded it was faster than no cache. Could you elaborate ? I don't understand.

> 
> Le 9 octobre 2019 10:21:24 GMT+03:00, Thomas Guillem <thomas at gllm.fr> a écrit :
>> 
>> 
>> 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");
>> 
>> 
>> > 
>>> -- 
>>> Реми Дёни-Курмон
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