Re: Downsides to madvise/fadvise(willneed) for application startup

[Taras Glek]

On 04/05/2010 04:52 PM, Roland Dreier wrote:
> Almost certainly teaching my grandmother to suck eggs, but are you aware
> of the work Michael Meeks has done on improving openoffice.org startup time?
>    
Yes. There were some stones left unturned in the cold startup area. 
Turns out that every single large application suffers from low io 
throughput likely due to lack of cooperation between the dynamic linker 
and the kernel.
There is a glibc bug filed on that.

http://sourceware.org/bugzilla/show_bug.cgi?id=11431

Unfortunately, few userspace people seem to know exactly how madvise() 
hints behave, so I was hoping someone on LKML would clue me in.

Taras
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