From d37adfe5dd82cc3c933eb521b8f800c342af0e52 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Thu, 3 Mar 2016 07:02:03 +0100 Subject: score: Fix CPU time used by executing threads The CPU time used of a thread was previously maintained per-processor mostly during _Thread_Dispatch(). However, on SMP configurations the actual processor of a thread is difficult to figure out since thread dispatching is a highly asynchronous process (e.g. via inter-processor interrupts). Only the intended processor of a thread is known to the scheduler easily. Do the CPU usage accounting during thread heir updates in the context of the scheduler operations. Provide the function _Thread_Get_CPU_time_used() to get the CPU usage of a thread using proper locks to get a consistent value. Close #2627. --- cpukit/score/Makefile.am | 1 + 1 file changed, 1 insertion(+) (limited to 'cpukit/score/Makefile.am') diff --git a/cpukit/score/Makefile.am b/cpukit/score/Makefile.am index af78f15645..b6824ad446 100644 --- a/cpukit/score/Makefile.am +++ b/cpukit/score/Makefile.am @@ -305,6 +305,7 @@ libscore_a_SOURCES += src/thread.c src/threadchangepriority.c \ libscore_a_SOURCES += src/threadentryadaptoridle.c libscore_a_SOURCES += src/threadentryadaptornumeric.c libscore_a_SOURCES += src/threadentryadaptorpointer.c +libscore_a_SOURCES += src/threadgetcputimeused.c libscore_a_SOURCES += src/threadglobalconstruction.c libscore_a_SOURCES += src/threadtimeout.c libscore_a_SOURCES += src/threadyield.c -- cgit v1.2.3