On Sun, Apr 14, 2019 at 12:53:32PM +0200, Thomas Gleixner wrote: > So it stays in the same cache line, but as we move the VDSO to generic > code, the mask field needs to stay and this will make > basetime[CLOCK_MONOTONIC] > overlap into the next cache line.
Thanks for the great review; this is a good point. > See > https://lkml.kernel.org/r/alpine.deb.2.21.1902231727060.1...@nanos.tec.linutronix.de > for an alternate solution to this problem, which avoids this and just gives > CLOCK_MONOTONIC_RAW a separate storage space alltogether. I can certainly do this for the x86 vdso. Would that be useful or should I wait for Vincenzo's work on the generic vdso first? Many thanks, Huw.