胡斌 / srs

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winlin
15aea4d9 1 parent 951a93ab

add cpuinfo

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正在显示 4 个修改的文件 包含 194 行增加 和 15 行删除
... ... @@ -201,6 +201,7 @@ int SrsApiSummaries::do_process_request(SrsSocket* skt, SrsHttpMessage* req)
SrsRusage* r = srs_get_system_rusage();
SrsProcSelfStat* u = srs_get_self_proc_stat();
SrsProcSystemStat* s = srs_get_system_proc_stat();
SrsCpuInfo* c = srs_get_cpuinfo();
ss << JOBJECT_START
<< JFIELD_ERROR(ERROR_SUCCESS) << JFIELD_CONT
... ... @@ -211,7 +212,12 @@ int SrsApiSummaries::do_process_request(SrsSocket* skt, SrsHttpMessage* req)
<< JFIELD_ORG("rusage_ok", (r->ok? "true":"false")) << JFIELD_CONT
<< JFIELD_ORG("self_cpu_stat_ok", (u->ok? "true":"false")) << JFIELD_CONT
<< JFIELD_ORG("system_cpu_stat_ok", (s->ok? "true":"false")) << JFIELD_CONT
<< JFIELD_ORG("cpuinfo_ok", (c->ok? "true":"false")) << JFIELD_CONT
<< JFIELD_ORG("mem_kbyte", r->r.ru_maxrss) << JFIELD_CONT
<< JFIELD_ORG("system_cpu", s->percent) << JFIELD_CONT
<< JFIELD_ORG("self_cpu", u->percent) << JFIELD_CONT
<< JFIELD_ORG("nb_processors", c->nb_processors) << JFIELD_CONT
<< JFIELD_ORG("nb_processors_online", c->nb_processors_online) << JFIELD_CONT
<< JFIELD_ORG("ppid", u->ppid)
<< JOBJECT_END
<< JOBJECT_END;
... ... @@ -241,7 +247,8 @@ int SrsApiRusages::do_process_request(SrsSocket* skt, SrsHttpMessage* req)
ss << JOBJECT_START
<< JFIELD_ERROR(ERROR_SUCCESS) << JFIELD_CONT
<< JFIELD_ORG("data", JOBJECT_START)
<< JFIELD_ORG("rusage_ok", (r->ok? "true":"false")) << JFIELD_CONT
<< JFIELD_ORG("ok", (r->ok? "true":"false")) << JFIELD_CONT
<< JFIELD_ORG("sample_time", r->sample_time) << JFIELD_CONT
<< JFIELD_ORG("ru_utime", r->r.ru_utime.tv_sec) << JFIELD_CONT
<< JFIELD_ORG("ru_stime", r->r.ru_stime.tv_sec) << JFIELD_CONT
<< JFIELD_ORG("ru_maxrss", r->r.ru_maxrss) << JFIELD_CONT
... ... @@ -286,7 +293,9 @@ int SrsApiSelfProcStats::do_process_request(SrsSocket* skt, SrsHttpMessage* req)
ss << JOBJECT_START
<< JFIELD_ERROR(ERROR_SUCCESS) << JFIELD_CONT
<< JFIELD_ORG("data", JOBJECT_START)
<< JFIELD_ORG("self_cpu_stat_ok", (u->ok? "true":"false")) << JFIELD_CONT
<< JFIELD_ORG("ok", (u->ok? "true":"false")) << JFIELD_CONT
<< JFIELD_ORG("sample_time", u->sample_time) << JFIELD_CONT
<< JFIELD_ORG("percent", u->percent) << JFIELD_CONT
<< JFIELD_ORG("pid", u->pid) << JFIELD_CONT
<< JFIELD_STR("comm", u->comm) << JFIELD_CONT
<< JFIELD_STR("state", u->state) << JFIELD_CONT
... ... @@ -359,7 +368,9 @@ int SrsApiSystemProcStats::do_process_request(SrsSocket* skt, SrsHttpMessage* re
ss << JOBJECT_START
<< JFIELD_ERROR(ERROR_SUCCESS) << JFIELD_CONT
<< JFIELD_ORG("data", JOBJECT_START)
<< JFIELD_ORG("system_cpu_stat_ok", (s->ok? "true":"false")) << JFIELD_CONT
<< JFIELD_ORG("ok", (s->ok? "true":"false")) << JFIELD_CONT
<< JFIELD_ORG("sample_time", s->sample_time) << JFIELD_CONT
<< JFIELD_ORG("percent", s->percent) << JFIELD_CONT
<< JFIELD_ORG("user", s->user) << JFIELD_CONT
<< JFIELD_ORG("nice", s->nice) << JFIELD_CONT
<< JFIELD_ORG("sys", s->sys) << JFIELD_CONT
... ...
... ... @@ -56,11 +56,11 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// update rusage interval:
// SRS_SYS_CYCLE_INTERVAL * SRS_SYS_RUSAGE_RESOLUTION_TIMES
#define SRS_SYS_RUSAGE_RESOLUTION_TIMES 15
#define SRS_SYS_RUSAGE_RESOLUTION_TIMES 30
// update rusage interval:
// SRS_SYS_CYCLE_INTERVAL * SRS_SYS_CPU_STAT_RESOLUTION_TIMES
#define SRS_SYS_CPU_STAT_RESOLUTION_TIMES 15
#define SRS_SYS_CPU_STAT_RESOLUTION_TIMES 30
SrsListener::SrsListener(SrsServer* server, SrsListenerType type)
{
... ...
... ... @@ -63,6 +63,7 @@ static SrsRusage _srs_system_rusage;
SrsRusage::SrsRusage()
{
ok = false;
sample_time = 0;
memset(&r, 0, sizeof(rusage));
}
... ... @@ -78,6 +79,9 @@ void srs_update_system_rusage()
return;
}
srs_update_system_time_ms();
_srs_system_rusage.sample_time = srs_get_system_time_ms();
_srs_system_rusage.ok = true;
}
... ... @@ -87,11 +91,70 @@ static SrsProcSystemStat _srs_system_cpu_system_stat;
SrsProcSelfStat::SrsProcSelfStat()
{
ok = false;
sample_time = 0;
percent = 0;
pid = 0;
memset(comm, 0, sizeof(comm));
state = 0;
ppid = 0;
pgrp = 0;
session = 0;
tty_nr = 0;
tpgid = 0;
flags = 0;
minflt = 0;
cminflt = 0;
majflt = 0;
cmajflt = 0;
utime = 0;
stime = 0;
cutime = 0;
cstime = 0;
priority = 0;
nice = 0;
num_threads = 0;
itrealvalue = 0;
starttime = 0;
vsize = 0;
rss = 0;
rsslim = 0;
startcode = 0;
endcode = 0;
startstack = 0;
kstkesp = 0;
kstkeip = 0;
signal = 0;
blocked = 0;
sigignore = 0;
sigcatch = 0;
wchan = 0;
nswap = 0;
cnswap = 0;
exit_signal = 0;
processor = 0;
rt_priority = 0;
policy = 0;
delayacct_blkio_ticks = 0;
guest_time = 0;
cguest_time = 0;
}
SrsProcSystemStat::SrsProcSystemStat()
{
ok = false;
sample_time = 0;
percent = 0;
memset(label, 0, sizeof(label));
user = 0;
nice = 0;
sys = 0;
idle = 0;
iowait = 0;
irq = 0;
softirq = 0;
steal = 0;
guest = 0;
}
SrsProcSelfStat* srs_get_self_proc_stat()
... ... @@ -104,17 +167,14 @@ SrsProcSystemStat* srs_get_system_proc_stat()
return &_srs_system_cpu_system_stat;
}
void srs_update_proc_stat()
bool get_proc_system_stat(SrsProcSystemStat& r)
{
// system cpu stat
if (true) {
FILE* f = fopen("/proc/stat", "r");
if (f == NULL) {
srs_warn("open system cpu stat failed, ignore");
return;
return false;
}
SrsProcSystemStat& r = _srs_system_cpu_system_stat;
for (;;) {
int ret = fscanf(f, "%4s %lu %lu %lu %lu %lu "
"%lu %lu %lu %lu\n",
... ... @@ -133,17 +193,18 @@ void srs_update_proc_stat()
}
fclose(f);
}
// self cpu stat
if (true) {
return r.ok;
}
bool get_proc_self_stat(SrsProcSelfStat& r)
{
FILE* f = fopen("/proc/self/stat", "r");
if (f == NULL) {
srs_warn("open self cpu stat failed, ignore");
return;
return false;
}
SrsProcSelfStat& r = _srs_system_cpu_self_stat;
int ret = fscanf(f, "%d %32s %c %d %d %d %d "
"%d %u %lu %lu %lu %lu "
"%lu %lu %ld %ld %ld %ld "
... ... @@ -168,5 +229,83 @@ void srs_update_proc_stat()
}
fclose(f);
return r.ok;
}
void srs_update_proc_stat()
{
srs_update_system_time_ms();
// system cpu stat
if (true) {
SrsProcSystemStat r;
if (!get_proc_system_stat(r)) {
return;
}
r.sample_time = srs_get_system_time_ms();
// calc usage in percent
SrsProcSystemStat& o = _srs_system_cpu_system_stat;
// @see: http://blog.csdn.net/nineday/article/details/1928847
int64_t total = (r.user + r.nice + r.sys + r.idle + r.iowait + r.irq + r.softirq + r.steal + r.guest)
- (o.user + o.nice + o.sys + o.idle + o.iowait + o.irq + o.softirq + o.steal + o.guest);
int64_t idle = r.idle - o.idle;
if (total > 0) {
r.percent = (float)(1 - idle / (double)total);
}
// upate cache.
_srs_system_cpu_system_stat = r;
}
// self cpu stat
if (true) {
SrsProcSelfStat r;
if (!get_proc_self_stat(r)) {
return;
}
srs_update_system_time_ms();
r.sample_time = srs_get_system_time_ms();
// calc usage in percent
SrsProcSelfStat& o = _srs_system_cpu_self_stat;
// @see: http://stackoverflow.com/questions/16011677/calculating-cpu-usage-using-proc-files
int64_t total = r.sample_time - o.sample_time;
int64_t usage = (r.utime + r.stime) - (o.utime + o.stime);
if (total > 0) {
r.percent = (float)(usage * 1000 / (double)total / 100);
}
// upate cache.
_srs_system_cpu_self_stat = r;
}
}
SrsCpuInfo::SrsCpuInfo()
{
ok = false;
nb_processors = 0;
nb_processors_online = 0;
}
SrsCpuInfo* srs_get_cpuinfo()
{
static SrsCpuInfo* cpu = NULL;
if (cpu != NULL) {
return cpu;
}
// initialize cpu info.
cpu = new SrsCpuInfo();
cpu->ok = true;
cpu->nb_processors = sysconf(_SC_NPROCESSORS_CONF);
cpu->nb_processors_online = sysconf(_SC_NPROCESSORS_ONLN);
return cpu;
}
... ...
... ... @@ -40,7 +40,11 @@ extern void srs_update_system_time_ms();
// @see: man getrusage
struct SrsRusage
{
// whether the data is ok.
bool ok;
// the time in ms when sample.
int64_t sample_time;
rusage r;
SrsRusage();
... ... @@ -56,6 +60,10 @@ struct SrsProcSelfStat
{
// whether the data is ok.
bool ok;
// the time in ms when sample.
int64_t sample_time;
// the percent of usage. 0.153 is 15.3%.
float percent;
// pid %d The process ID.
int pid;
... ... @@ -203,6 +211,10 @@ struct SrsProcSystemStat
{
// whether the data is ok.
bool ok;
// the time in ms when sample.
int64_t sample_time;
// the percent of usage. 0.153 is 15.3%.
float percent;
// always be cpu
char label[32];
... ... @@ -248,4 +260,21 @@ extern SrsProcSystemStat* srs_get_system_proc_stat();
// the deamon st-thread will update it.
extern void srs_update_proc_stat();
// @see: cat /proc/cpuinfo
struct SrsCpuInfo
{
// whether the data is ok.
bool ok;
// The number of processors configured.
int nb_processors;
// The number of processors currently online (available).
int nb_processors_online;
SrsCpuInfo();
};
// get system cpu info, use cache to avoid performance problem.
extern SrsCpuInfo* srs_get_cpuinfo();
#endif
... ...