RE: Block IO throttling disabled in distros

[Haefliger, Juerg]

> On Mon, Feb 07, 2011 at 03:33:38PM +0000, Haefliger, Juerg wrote:
> > Hi,
> >
> > Both RHEL6 and Ubuntu 10.10 have block IO throttling disabled in
> their kernels. Does anybody know why that is? Are there performance or
> stability issues with the throttling controller or does it somehow
> negatively interfere with the rest of the kernel and/or system?
> 
> Block IO throttling support was not even upstream at that time hence
> you don't see it.

Duh! I thought I checked that the code was there but just not enabled. I just double-checked and sure enough block IO throttling is not in the RHEL6 kernel source. Sorry for the noise.

Thanks
...Juerg


> I have not heard about any stability issues so far. Of course more
> testing will reveal that.
> 
> The only thing I have thinking is that should we limit the number of
> bios queued per IO context on the device. Currently there is no such limit
> and one can queue up as many bios as one want to.
>
>
> Thanks
> Vivek
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/