| [chrony-dev] [PATCH] sys_posix: support SCHED_FIFO and mlockall on more OSs |
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- To: chrony-dev@xxxxxxxxxxxxxxxxxxxx
- Subject: [chrony-dev] [PATCH] sys_posix: support SCHED_FIFO and mlockall on more OSs
- From: "Stefan R. Filipek" <srfilipek@xxxxxxxxx>
- Date: Sat, 13 Apr 2019 10:06:09 -0400
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Hi,
The following patch centralizes the memory locking and real-time scheduling
for POSIX systems. It brings support for these features to FreeBSD, NetBSD,
and Solaris. Note that MacOS does support the pthread_setschedparam() API,
but it does not function as intended for real-time scheduling. As such,
MacOS was not included in the patch.
Also note that the memory locking behavior changed ever-so-slightly.
Solaris does not support setrlimit(RLIMIT_MEMLOCK, ...), so this was turned
into an optional call and an additional configure test. It will no longer
prevent memory locking, even if the call fails.
I tested this patch using Linux 4.18 with glibc, FreeBSD 11.2 & 12, NetBSD
8, and Solaris 11.
The documentation needs to be updated for the new support as well. I can
submit this as a separate patch or combine it into one. Your choice.
Regards,
Stefan