Re: gettimeofday(), clock_gettime(), timer_gettime()

[John Richard Moser <nigelenki@comcast.net>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1



Andi Kleen wrote:
> John Richard Moser <nigelenki@comcast.net> writes:
> 
>>  - gettimeofday() is slow, or so they say, needing several milliseconds
>> to execute.
> 
> It's not generally true, only sometimes. Please don't spread FUD.
> 

http://lwn.net/Articles/192214/

"X is a big offender, apparently because the gettimeofday() call is
still too slow and maintaining time stamps with interval timers is faster."

Or so they say.  I'm not the one spreading FUD; amusingly it takes me
50uS to run gettimeofday().

> -Andi
> 

- --
All content of all messages exchanged herein are left in the
Public Domain, unless otherwise explicitly stated.

    Creative brains are a valuable, limited resource. They shouldn't be
    wasted on re-inventing the wheel when there are so many fascinating
    new problems waiting out there.
                                                 -- Eric Steven Raymond

    We will enslave their women, eat their children and rape their
    cattle!
                  -- Bosc, Evil alien overlord from the fifth dimension
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.3 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iQIVAwUBRMeVNQs1xW0HCTEFAQImUg//eHXZfdTjazbLZFFUFVSoaCafunFzZyB5
uVmEq7yDWwsWe2jWTj9g3L/CpTECaiIAbcErrOxo8tGjN9PvGjKhfBTO8QmQAw6P
/InXa/DlPYN+ZhHAhXaNiS8CHMlVdSL6PT5NSMtugkepgRdQ4OhjOWe3MNgvSfdJ
tmUdq/clqz7S1gnPg8UvGOjgtUAlh+1+/7F/mYHgJn84DnexC81apVhP99jqvQ3o
u4dVyqxbfPIGkPDkZuorKY8HKeVLD6qettK8fK01pz2wgwSrjl1q+rZm2BGzuyMw
AAFtgfL/Z1DlEroaNcjAPJI3C43D4idGxpmtut/+sDP7wqxZ5LafULzotQWNbwDl
zi0MAfMbPkigPE8eUaQigHWTM7omvGFdadJhwx6Xd3ZmP2KTs6pCVU0X/A6i4ae/
fO1VbSztcVtoSy3Bz2jRIp4TjW1xuucdchjsT5yskpdEeeMwToKRV0qBTu1tyCv9
INQ4ovWNDsPgVLFx4l8EpcVlnYGelaJLNpzt+7bEFLsrW/q3thzCHFr440Cc5h4G
7Ukvu5s/a4BbMa6vnVPbaek7S8tBCrcHixzttJcjiObnxicZxr2V81sviVDMlCmy
zMuPeASzurgo2n3tDAmIwxICMUmsYB8l4oce7f1LLK9PFeOrVBhcLJymPCh8on4z
HIreAI1tj+Q=
=i75z
-----END PGP SIGNATURE-----
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/