| /* |
| * include/proto/activity.h |
| * This file contains macros and inline functions for activity measurements. |
| * |
| * Copyright (C) 2000-2018 Willy Tarreau - w@1wt.eu |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation, version 2.1 |
| * exclusively. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef _PROTO_ACTIVITY_H |
| #define _PROTO_ACTIVITY_H |
| |
| #include <common/config.h> |
| #include <common/hathreads.h> |
| #include <common/time.h> |
| #include <types/activity.h> |
| |
| extern struct activity activity[MAX_THREADS]; |
| |
| |
| void report_stolen_time(uint64_t stolen); |
| |
| /* Collect date and time information before calling poll(). This will be used |
| * to count the run time of the past loop and the sleep time of the next poll. |
| */ |
| static inline void activity_count_runtime() |
| { |
| uint64_t new_mono_time; |
| uint64_t new_cpu_time; |
| int64_t stolen; |
| |
| new_cpu_time = now_cpu_time(); |
| new_mono_time = now_mono_time(); |
| |
| if (prev_cpu_time && prev_mono_time) { |
| new_cpu_time -= prev_cpu_time; |
| new_mono_time -= prev_mono_time; |
| stolen = new_mono_time - new_cpu_time; |
| if (unlikely(stolen >= 500000)) { |
| stolen /= 500000; |
| /* more than half a millisecond difference might |
| * indicate an undesired preemption. |
| */ |
| report_stolen_time(stolen); |
| } |
| } |
| } |
| |
| |
| #endif /* _PROTO_ACTIVITY_H */ |
| |
| /* |
| * Local variables: |
| * c-indent-level: 8 |
| * c-basic-offset: 8 |
| * End: |
| */ |