Re: [PATCH 2/2] powerpc/vdso64: Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE

2017-10-08 Thread Santosh Sivaraj
* Naveen N. Rao wrote (on 2017-10-06 09:28:30 +): > On 2017/09/18 09:23AM, Santosh Sivaraj wrote: > > Current vDSO64 implementation does not have support for coarse clocks > > (CLOCK_MONOTONIC_COARSE, CLOCK_REALTIME_COARSE), for which it falls back > > to system call, increasing the response

Re: [PATCH 2/2] powerpc/vdso64: Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE

2017-10-08 Thread Santosh Sivaraj
* Naveen N. Rao wrote (on 2017-10-06 11:25:28 +): > On 2017/09/18 09:23AM, Santosh Sivaraj wrote: > > Current vDSO64 implementation does not have support for coarse clocks > > (CLOCK_MONOTONIC_COARSE, CLOCK_REALTIME_COARSE), for which it falls back > > to system call, increasing the response

Re: [PATCH 2/2] powerpc/vdso64: Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE

2017-10-06 Thread Naveen N. Rao
On 2017/09/18 09:23AM, Santosh Sivaraj wrote: > Current vDSO64 implementation does not have support for coarse clocks > (CLOCK_MONOTONIC_COARSE, CLOCK_REALTIME_COARSE), for which it falls back > to system call, increasing the response time, vDSO implementation reduces > the cycle time. Below is a b

Re: [PATCH 2/2] powerpc/vdso64: Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE

2017-10-06 Thread Naveen N. Rao
On 2017/09/18 09:23AM, Santosh Sivaraj wrote: > Current vDSO64 implementation does not have support for coarse clocks > (CLOCK_MONOTONIC_COARSE, CLOCK_REALTIME_COARSE), for which it falls back > to system call, increasing the response time, vDSO implementation reduces > the cycle time. Below is a b

[PATCH 2/2] powerpc/vdso64: Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE

2017-09-18 Thread Santosh Sivaraj
Current vDSO64 implementation does not have support for coarse clocks (CLOCK_MONOTONIC_COARSE, CLOCK_REALTIME_COARSE), for which it falls back to system call, increasing the response time, vDSO implementation reduces the cycle time. Below is a benchmark of the difference in execution time with and