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Miguel.°.
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in reality, select() was universal to all kerns' !. poll() was software
emmalated in the 2.0.xx series. poll() was the orig choice of system call,
but history took a different turn on the linux boxes, where the functi
onality of poll had to be recreated so that most of the linux world would
run on
Kevin B. Hendricks wrote:
> > On some OSes, poll() has
> >turned out to be a performance dog compared to select().
>
> .
> .
> .
>
> Given that select must look through all of the fds+1 that you are selecting
> over and poll does not, a true "poll" should work much much faster
>From the FAQ in glibc 2.0.109:
>2.25. I need lots of open files. What do I have to do?
>
>{AJ} This is at first a kernel issue. The kernel defines limits with
>OPEN_MAX the number of simultaneous open files and with FD_SETSIZE the
>number of used file descriptors. You need to change these v
Hi,
> On some OSes, poll() has
>turned out to be a performance dog compared to select(). If anyone
>listening has the configuration and time to try Kevin's suggested test:
>it would be worthwhile to hack together a little benchmark to ascertain
>whether poll() will give us another reason to comp
Kevin B. Hendricks wrote:
>
> A few words to clear this up.
>
> > The kernel does support it. The only problem is that the JVM is using
> > select(2) when it should use poll(2).
>
> No, this is not correct. The 1.1.7 JDK for glibc uses poll and not select (I
> know because I rewrote it t
A few words to clear this up.
> The kernel does support it. The only problem is that the JVM is using
> select(2) when it should use poll(2).
No, this is not correct. The 1.1.7 JDK for glibc uses poll and not select (I
know because I rewrote it to use poll). The problem is that glibc 2.0
On Mon, Jan 18, 1999 at 08:41:18AM +, David Warnock wrote:
>
> Alan Cox one of the key kernel developers mentions a patch to allow a
> lot more file handles in his on-line diary at
>
> http://www.linux.org.uk/diary/
>
> I suggest youn try looking there (I think it will have more detailed
>
Herbert,
Alan Cox one of the key kernel developers mentions a patch to allow a
lot more file handles in his on-line diary at
http://www.linux.org.uk/diary/
I suggest youn try looking there (I think it will have more detailed
references if you go further back.
I also think I may have seen somet
On Mon, Jan 18, 1999 at 11:56:30AM +0900, SHUDO Kazuyuki wrote:
> [EMAIL PROTECTED](Herbert Xu) wrote:
>
> > We have an Java application here that uses around 3000 file
> > descriptors at once.
>
> > Unfortunately, the
> > JVM (117) under Linux is trying to select over >1024 file descriptors
[EMAIL PROTECTED](Herbert Xu) wrote:
> We have an Java application here that uses around 3000 file
> descriptors at once.
> Unfortunately, the
> JVM (117) under Linux is trying to select over >1024 file descriptors, which
> is causing a core dump.
I think that it is a wrong behavior to ca
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