Due to POSIX POSIX.1-2001, the CPU time of processes is not accounted to the cumulative time of the parents, if the parents ignore SIGCHLD or have set SA_NOCLDWAIT. This behaviour has the major drawback that it is not possible to calculate all consumed CPU time of a system by looking at the current tasks. CPU time can be lost. To solve this problem, this patch set duplicates the cumulative accounting data in the signal_struct. In the second set (cdata_acct) the complete cumulative resource counters are stored. The new cumulative CPU time (utime and stime) is then exported via the taskstats interface. PATCH SET OVERVIEW ------------------ Patches apply on: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git [1] Introduce "struct cdata" [2] Introduce __account_cdata() function [3] Introduce cdata_acct for complete cumulative accounting [4] Export "cdata_acct" with taskstats -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
