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https://github.com/openvswitch/ovs
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1680d3d7e3
We use getrusage mainly to get user CPU time and system CPU time. Windows has a GetProcessTimes and GetThreadTimes that does the same job. So use them. We also use getrusage to get page faults. Use GetProcessMemoryInfo() for that. We also get number of context switches, block i/o times and use it for debug information when we wake up from poll_block late. I haven't found functions for that in Windows. We only use it for debug information, so it should be okay not implementing it. Signed-off-by: Gurucharan Shetty <gshetty@nicira.com> Co-authored-by: Linda Sun <lsun@vmware.com> Signed-off-by: Linda Sun <lsun@vmware.com> Acked-by: Ben Pfaff <blp@nicira.com>
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
/*
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* Copyright (c) 2014 Nicira, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <config.h>
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#include <errno.h>
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#include <psapi.h>
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#include <sys/resource.h>
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#include <time.h>
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#include "util.h"
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#include "vlog.h"
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VLOG_DEFINE_THIS_MODULE(getrusage_windows);
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static void
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usage_to_timeval(FILETIME *ft, struct timeval *tv)
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{
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ULARGE_INTEGER time;
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time.LowPart = ft->dwLowDateTime;
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time.HighPart = ft->dwHighDateTime;
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tv->tv_sec = time.QuadPart / 10000000;
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tv->tv_usec = (time.QuadPart % 10000000) / 10;
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}
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int
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getrusage(int who, struct rusage *usage)
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{
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FILETIME creation_time, exit_time, kernel_time, user_time;
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PROCESS_MEMORY_COUNTERS pmc;
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memset(usage, 0, sizeof(struct rusage));
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if (who == RUSAGE_SELF) {
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if (!GetProcessTimes(GetCurrentProcess(), &creation_time, &exit_time,
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&kernel_time, &user_time)) {
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VLOG_ERR("failed at GetProcessTimes: %s",
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ovs_lasterror_to_string());
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return -1;
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}
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if (!GetProcessMemoryInfo(GetCurrentProcess(), &pmc, sizeof(pmc))) {
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VLOG_ERR("failed at GetProcessMemoryInfo: %s",
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ovs_lasterror_to_string());
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return -1;
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}
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usage_to_timeval(&kernel_time, &usage->ru_stime);
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usage_to_timeval(&user_time, &usage->ru_utime);
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usage->ru_majflt = pmc.PageFaultCount;
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usage->ru_maxrss = pmc.PeakWorkingSetSize / 1024;
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return 0;
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} else if (who == RUSAGE_THREAD) {
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if (!GetThreadTimes(GetCurrentThread(), &creation_time, &exit_time,
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&kernel_time, &user_time)) {
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VLOG_ERR("failed at GetThreadTimes: %s",
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ovs_lasterror_to_string());
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return -1;
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}
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usage_to_timeval(&kernel_time, &usage->ru_stime);
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usage_to_timeval(&user_time, &usage->ru_utime);
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return 0;
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} else {
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return -1;
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}
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}
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