Subhash S wrote:
>
> Hi All,
>
> In my application I use gettimeofday very frequently, as it is system
> call on linux it is expensive, where as on Solaris it is not so. Could
> you please tell me how solaris is implemented the function gettimeofday.
While I can't tell you how Solaris implemented it, I can say that in general if
you want very frequent timing access you're probably better off using inline
assembly to get at some processor-specific timer. On a 400Mhz G4, the
difference was about a microsecond for gettimeofday() vs about 25 nanoseconds
for the assembly code.
-- Chris Friesen | MailStop: 043/33/F10 Nortel Networks | work: (613) 765-0557 3500 Carling Avenue | fax: (613) 765-2986 Nepean, ON K2H 8E9 Canada | email: cfriesen@nortelnetworks.com - 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/
This archive was generated by hypermail 2b29 : Tue Jul 31 2001 - 21:00:51 EST