Messages in this thread | | | Date | Fri, 01 Aug 2014 15:13:19 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH 4/5] x86: entry_64.S: always allocate complete "struct pt_regs" |
| |
On 08/01/2014 03:11 PM, Denys Vlasenko wrote: >> >> Could you please try to see if there is a measurable change in the >> latency of a trivial syscall? > > Will do. > Something along the lines of "how long does it take to execute two > gazillions of getppid()?" >
Something like that, yes, but you have to run enough data points so you can determine if the difference is statistically significant or just noise.
-hpa
| |