On Mon, Sep 05, 2005 at 11:02:25AM +0530, Srivatsa Vaddagiri wrote:
> I don't see provisions for all these in the current ARM implementation.
That's because, like x86, we've been ignoring each other. ARM
doesn't handle dyntick SMP yet - ARM is fairly young as far as
SMP issues goes, and as yet doesn't include a full SMP
implementation in mainline.
Despite that, the timers as implemented on the hardware are not
suitable for dyntick use - attempting to use them, you lose long
term precision of the timer interrupts.
> 5. Don't see how DYN_TICK_SKIPPING is being used. In SMP scenario,
> it doesnt make sense since it will have to be per-cpu. The bitmap
> that I talked of exactly tells that (whether a CPU is skipping
> ticks or not).
What's DYN_TICK_SKIPPING and what's it used for? It looks like
a redundant definition left over from Tony's original implementation.
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 Serial core
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
|
|