On Wed, 20 Apr 2005, Francesco Oppedisano wrote:
Hi,
i'd like to know how much time does linux kernel run with disabled
interrupts. So i would like to remap the instructions capable of
disabling interrupt to other ones which count how much this time is...
Does already exist a patch or tool capable to give me a magnitude
order of the time spent by the kernel with disables interrupts?
In uniprocessor systems, can i state that the only instruction capable
of disabling interrupts is cli?
How do you propose to "remap" the CLI instruction? The kernel
isn't going to trap on this perfectly legal instruction in
kernel mode.
Also, interrupts can be disabled by masking them off in the
controller(s) so there are many ways that any/all interrupts
can be disabled.
Thank u very much
Francesco Oppedisano
-
Cheers,
Dick Johnson
Penguin : Linux version 2.6.11 on an i686 machine (5537.79 BogoMips).
Notice : All mail here is now cached for review by Dictator Bush.
98.36% of all statistics are fiction.
-
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]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
