diff options
Diffstat (limited to '')
| -rw-r--r-- | daemon/daemon.c (renamed from src/daemon.c) | 70 |
1 files changed, 63 insertions, 7 deletions
diff --git a/src/daemon.c b/daemon/daemon.c index 471c62c6..4ad082b9 100644 --- a/src/daemon.c +++ b/daemon/daemon.c @@ -1,3 +1,5 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + #include "common.h" #include <sched.h> @@ -151,6 +153,10 @@ static void oom_score_adj(void) { s = config_get(CONFIG_SECTION_GLOBAL, "OOM score", s); if(s && *s && (isdigit(*s) || *s == '-' || *s == '+')) wanted_score = atoll(s); + else if(s && !strcmp(s, "keep")) { + info("Out-Of-Memory (OOM) kept as-is (running with %d)", (int) old_score); + return; + } else { info("Out-Of-Memory (OOM) score not changed due to non-numeric setting: '%s' (running with %d)", s, (int)old_score); return; @@ -202,8 +208,6 @@ static void process_nice_level(void) { #endif // HAVE_NICE }; -#ifdef HAVE_SCHED_SETSCHEDULER - #define SCHED_FLAG_NONE 0x00 #define SCHED_FLAG_PRIORITY_CONFIGURABLE 0x01 // the priority is user configurable #define SCHED_FLAG_KEEP_AS_IS 0x04 // do not attempt to set policy, priority or nice() @@ -227,8 +231,8 @@ struct sched_def { #endif #ifdef SCHED_OTHER - { "nice", SCHED_OTHER, 0, SCHED_FLAG_USE_NICE }, { "other", SCHED_OTHER, 0, SCHED_FLAG_USE_NICE }, + { "nice", SCHED_OTHER, 0, SCHED_FLAG_USE_NICE }, #endif #ifdef SCHED_RR @@ -251,6 +255,55 @@ struct sched_def { { NULL, 0, 0, 0 } }; + +#ifdef HAVE_SCHED_GETSCHEDULER +static void sched_getscheduler_report(void) { + int sched = sched_getscheduler(0); + if(sched == -1) { + error("Cannot get my current process scheduling policy."); + return; + } + else { + int i; + for(i = 0 ; scheduler_defaults[i].name ; i++) { + if(scheduler_defaults[i].policy == sched) { + if(scheduler_defaults[i].flags & SCHED_FLAG_PRIORITY_CONFIGURABLE) { + struct sched_param param; + if(sched_getparam(0, ¶m) == -1) { + error("Cannot get the process scheduling priority for my policy '%s'", scheduler_defaults[i].name); + return; + } + else { + info("Running with process scheduling policy '%s', priority %d", scheduler_defaults[i].name, param.sched_priority); + } + } + else if(scheduler_defaults[i].flags & SCHED_FLAG_USE_NICE) { + #ifdef HAVE_GETPRIORITY + int n = getpriority(PRIO_PROCESS, 0); + info("Running with process scheduling policy '%s', nice level %d", scheduler_defaults[i].name, n); + #else // !HAVE_GETPRIORITY + info("Running with process scheduling policy '%s'", scheduler_defaults[i].name); + #endif // !HAVE_GETPRIORITY + } + else { + info("Running with process scheduling policy '%s'", scheduler_defaults[i].name); + } + + return; + } + } + } +} +#else // !HAVE_SCHED_GETSCHEDULER +static void sched_getscheduler_report(void) { +#ifdef HAVE_GETPRIORITY + info("Running with priority %d", getpriority(PRIO_PROCESS, 0)); +#endif // HAVE_GETPRIORITY +} +#endif // !HAVE_SCHED_GETSCHEDULER + +#ifdef HAVE_SCHED_SETSCHEDULER + static void sched_setscheduler_set(void) { if(scheduler_defaults[0].name) { @@ -270,7 +323,7 @@ static void sched_setscheduler_set(void) { flags = scheduler_defaults[i].flags; if(flags & SCHED_FLAG_KEEP_AS_IS) - return; + goto report; if(flags & SCHED_FLAG_PRIORITY_CONFIGURABLE) priority = (int)config_get_number(CONFIG_SECTION_GLOBAL, "process scheduling priority", priority); @@ -310,18 +363,21 @@ static void sched_setscheduler_set(void) { else { info("Adjusted netdata scheduling policy to %s (%d), with priority %d.", name, policy, priority); if(!(flags & SCHED_FLAG_USE_NICE)) - return; + goto report; } } fallback: process_nice_level(); + +report: + sched_getscheduler_report(); } -#else +#else // !HAVE_SCHED_SETSCHEDULER static void sched_setscheduler_set(void) { process_nice_level(); } -#endif +#endif // !HAVE_SCHED_SETSCHEDULER int become_daemon(int dont_fork, const char *user) { |