Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1384106
| From | Tina Ruchandani <ruchandani.tina@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2] drm/msm: Use 64-bit timekeeping |
| Date | 2016-04-21 13:40 +0200 |
| Message-ID | <rql7I-8rt-29@gated-at.bofh.it> (permalink) |
| References | <rnrMm-116-27@gated-at.bofh.it> <roI8q-38N-5@gated-at.bofh.it> <rql7I-8rt-31@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
>> which only does one 64-bit division, and it's one that we can probably >> optimize out in the future (we can check in ktime_ms_delta whether the >> difference is more than 2^32 nanoseconds as the fast path). It looks like ktime_divns already has that optimization for 32-bit divisor, so your solution should avoid the 64-bit division.
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Re: [PATCH v2] drm/msm: Use 64-bit timekeeping Arnd Bergmann <arnd@arndb.de> - 2016-04-17 01:50 +0200
Re: [PATCH v2] drm/msm: Use 64-bit timekeeping Tina Ruchandani <ruchandani.tina@gmail.com> - 2016-04-21 13:40 +0200
Re: [PATCH v2] drm/msm: Use 64-bit timekeeping Arnd Bergmann <arnd@arndb.de> - 2016-04-21 14:30 +0200
Re: [PATCH v2] drm/msm: Use 64-bit timekeeping Tina Ruchandani <ruchandani.tina@gmail.com> - 2016-04-21 13:40 +0200
csiph-web