[multicat-devel] Multicat reads and HDD disk I/O

cmassiot at openheadend.tv cmassiot at openheadend.tv
Mon Sep 29 21:49:53 CEST 2014


 

Hello, 

Generally these concerns are solved by setting a large read-ahead buffer
for the block device. See : blockdev --setra 

Le 29.09.2014 21:35, Ibrahim Tachijian a écrit : 

> Sorry I meant reading from file to output to multicast. 
> 
> On Mon, Sep 29, 2014 at 9:28 PM, Ibrahim Tachijian <barhom at gmail.com> wrote:
> 
>> Hello, 
>> 
>> We are running a system where we launch and stop multicats via scripts and are having some I/O issues with multicat read operations (read from file output to disk). 
>> 
>> Our greatest concern is that the program does not buffer any kind of data on the reads and thus generates too much I/O when streaming. Are our concerns correct? Does introducing a read buffer to multicat (multicat would have greater memory usage) help in the situation ? 
>> 
>> Regards, 
>> 
>> -- 
>> Ibrahim Tachijian
> 
> -- 
> Ibrahim Tachijian 
> 
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> multicat-devel at videolan.org
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