3 Commits

Author	SHA1	Message	Date
Christian Borntraeger	d5cd0343d2	[S390] Fix timeval regression on s390 ... commit aa5e97ce4bbc9d5daeec16b1d15bb3f6b7b4f4d4 [PATCH] improve precision of process accounting. Introduced a timing regression: -bash-3.2# time ls real 0m0.006s user 0m1.754s sys 0m1.094s The problem was introduced by an error in cputime_to_timeval. Cputime is now 1/4096 microsecond, therefore, we have to divide the remainder with 4096 to get the microseconds. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>	2009-02-19 15:19:19 +01:00
Martin Schwidefsky	aa5e97ce4b	[PATCH] improve precision of process accounting. ... The unit of the cputime accouting values that are stored per process is currently a microsecond. The CPU timer has a maximum granularity of 2**-12 microseconds. There is no benefit in storing the per process values in the lesser precision and there is the disadvantage that the backend has to do the rounding to microseconds. The better solution is to use the maximum granularity of the CPU timer as cputime unit. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>	2008-12-31 15:11:47 +01:00
Martin Schwidefsky	c6557e7f2b	[S390] move include/asm-s390 to arch/s390/include/asm ... Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>	2008-08-01 20:42:05 +02:00