anolis: sched: support cpu.exstat
ANBZ: #11863 Use cgroup rstat as cpuusage data source. Signed-off-by: Yi Tao <escape@linux.alibaba.com> Acked-by: Tianchen Ding <dtcccc@linux.alibaba.com> Link: https://gitee.com/anolis/cloud-kernel/pulls/4121
This commit is contained in:
Yi Tao
小龙
parent
e725cd87e9
commit
d980cb19ad
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@ -781,6 +781,9 @@ void cgroup_rstat_flush(struct cgroup *cgrp);
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void cgroup_rstat_flush_irqsafe(struct cgroup *cgrp);
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void cgroup_rstat_flush_hold(struct cgroup *cgrp);
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void cgroup_rstat_flush_release(void);
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bool cgroup_on_dfl(const struct cgroup *cgrp);
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void __cgroup_get_usage(struct cgroup *cgrp, int cpu,
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struct cpuacct_usage_result *res);
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/*
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* Basic resource stats.
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@ -222,7 +222,6 @@ static inline void get_css_set(struct css_set *cset)
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}
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bool cgroup_ssid_enabled(int ssid);
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bool cgroup_on_dfl(const struct cgroup *cgrp);
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bool cgroup_is_thread_root(struct cgroup *cgrp);
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bool cgroup_is_threaded(struct cgroup *cgrp);
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@ -562,3 +562,17 @@ void cgroup_base_stat_cputime_show(struct seq_file *seq)
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seq_printf(seq, "sibidle_task_usec %llu\n", sibidle_task_time);
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#endif
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}
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void __cgroup_get_usage(struct cgroup *cgrp, int cpu,
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struct cpuacct_usage_result *res)
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{
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struct cgroup_rstat_cpu *rstatc;
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cgroup_rstat_flush_hold(cgrp);
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rstatc = cgroup_rstat_cpu(cgrp, cpu);
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res->user = rstatc->bstat.cputime.utime;
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res->system = rstatc->bstat.cputime.stime;
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cgroup_rstat_flush_release();
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}
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@ -10684,6 +10684,144 @@ out_show:
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return 0;
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}
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void __cgroup_get_usage_result(struct cgroup_subsys_state *css, int cpu,
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struct cpuacct_usage_result *res)
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{
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struct sched_entity *se;
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struct cgroup *cgrp = css->cgroup;
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struct task_group *tg = cgroup_tg(cgrp);
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memset(res, 0, sizeof(*res));
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if (unlikely(!tg))
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return;
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if (cgroup_on_dfl(cgrp))
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__cgroup_get_usage(cgrp, cpu, res);
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else
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__cpuacct_get_usage(css, cpu, res);
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se = tg->se[cpu];
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if (se && schedstat_enabled()) {
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unsigned int seq;
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unsigned long flags;
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u64 idle_start, ineff, ineff_start, elapse, complement;
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u64 clock, iowait_start;
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do {
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seq = read_seqcount_begin(&se->idle_seqcount);
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res->idle = schedstat_val(se->cg_idle_sum);
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idle_start = schedstat_val(se->cg_idle_start);
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clock = cpu_clock(cpu);
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if (idle_start && clock > idle_start)
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res->idle += clock - idle_start;
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} while (read_seqcount_retry(&se->idle_seqcount, seq));
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ineff = schedstat_val(se->cg_ineffective_sum);
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ineff_start = schedstat_val(se->cg_ineffective_start);
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if (ineff_start)
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__schedstat_add(ineff, clock - ineff_start);
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spin_lock_irqsave(&se->iowait_lock, flags);
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res->iowait = schedstat_val(se->cg_iowait_sum);
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iowait_start = schedstat_val(se->cg_iowait_start);
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if (iowait_start)
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__schedstat_add(res->iowait, clock - iowait_start);
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spin_unlock_irqrestore(&se->iowait_lock, flags);
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res->steal = 0;
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elapse = clock - schedstat_val(se->cg_init_time);
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complement = res->idle + se->sum_exec_runtime + ineff;
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if (elapse > complement)
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res->steal = elapse - complement;
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res->idle -= res->iowait;
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} else {
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res->idle = res->iowait = res->steal = 0;
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}
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}
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static int cpu_exstat_show(struct seq_file *sf, void *v)
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{
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struct cgroup_subsys_state *css = seq_css(sf);
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struct task_group *tg = css_tg(css);
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u64 user, nice, system, idle, iowait, irq, softirq, steal, guest;
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u64 nr_migrations = 0;
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struct cpu_alistats *alistats;
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unsigned long load, avnrun[3], avnrun_r[3];
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unsigned long nr_run = 0, nr_uninter = 0;
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int cpu;
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struct cpuacct_usage_result res;
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user = nice = system = idle = iowait =
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irq = softirq = steal = guest = 0;
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for_each_possible_cpu(cpu) {
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if (!housekeeping_cpu(cpu, HK_FLAG_DOMAIN))
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continue;
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rcu_read_lock();
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__cgroup_get_usage_result(css, cpu, &res);
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rcu_read_unlock();
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user += res.user;
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nice += res.nice;
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system += res.system;
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irq += res.irq;
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softirq += res.softirq;
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steal += res.steal;
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guest += res.guest;
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guest += res.guest_nice;
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iowait += res.iowait;
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idle += res.idle;
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alistats = per_cpu_ptr(tg->alistats, cpu);
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nr_migrations += alistats->nr_migrations;
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nr_run += tg_running(tg, cpu);
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nr_uninter += tg_uninterruptible(tg, cpu);
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}
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__get_cgroup_avenrun(tg, avnrun, FIXED_1/200, 0, false);
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__get_cgroup_avenrun(tg, avnrun_r, FIXED_1/200, 0, true);
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seq_printf(sf, "user %lld\n", nsec_to_clock_t(user));
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seq_printf(sf, "nice %lld\n", nsec_to_clock_t(nice));
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seq_printf(sf, "system %lld\n", nsec_to_clock_t(system));
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seq_printf(sf, "idle %lld\n", nsec_to_clock_t(idle));
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seq_printf(sf, "iowait %lld\n", nsec_to_clock_t(iowait));
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seq_printf(sf, "irq %lld\n", nsec_to_clock_t(irq));
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seq_printf(sf, "softirq %lld\n", nsec_to_clock_t(softirq));
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seq_printf(sf, "steal %lld\n", nsec_to_clock_t(steal));
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seq_printf(sf, "guest %lld\n", nsec_to_clock_t(guest));
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load = LOAD_INT(avnrun[0]) * 100 + LOAD_FRAC(avnrun[0]);
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seq_printf(sf, "load average(1min) %lld\n", (u64)load);
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load = LOAD_INT(avnrun[1]) * 100 + LOAD_FRAC(avnrun[1]);
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seq_printf(sf, "load average(5min) %lld\n", (u64)load);
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load = LOAD_INT(avnrun[2]) * 100 + LOAD_FRAC(avnrun[2]);
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seq_printf(sf, "load average(15min) %lld\n", (u64)load);
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seq_printf(sf, "nr_running %lld\n", (u64)nr_run);
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if ((long) nr_uninter < 0)
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nr_uninter = 0;
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seq_printf(sf, "nr_uninterruptible %lld\n", (u64)nr_uninter);
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seq_printf(sf, "nr_migrations %lld\n", (u64)nr_migrations);
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load = LOAD_INT(avnrun_r[0]) * 100 + LOAD_FRAC(avnrun_r[0]);
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seq_printf(sf, "running load average(1min) %lld\n", (u64)load);
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load = LOAD_INT(avnrun_r[1]) * 100 + LOAD_FRAC(avnrun_r[1]);
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seq_printf(sf, "running load average(5min) %lld\n", (u64)load);
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load = LOAD_INT(avnrun_r[2]) * 100 + LOAD_FRAC(avnrun_r[2]);
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seq_printf(sf, "running load average(15min) %lld\n", (u64)load);
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return 0;
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}
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#endif
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static struct cftype cpu_files[] = {
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@ -10812,6 +10950,18 @@ static struct cftype cpu_files[] = {
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.write_u64 = sched_lat_stat_write,
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.seq_show = sched_lat_stat_show
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},
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{
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.name = "exstat",
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.flags = CFTYPE_NOT_ON_ROOT,
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.seq_show = cpu_exstat_show,
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},
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{
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.name = "enable_sli",
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.flags = CFTYPE_NOT_ON_ROOT,
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.read_u64 = enable_sli_read,
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.write_u64 = enable_sli_write
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},
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#endif
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#if defined(CONFIG_SCHED_CORE) && defined(CONFIG_CFS_BANDWIDTH)
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{
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@ -10843,11 +10993,23 @@ static struct cftype cpu_files[] = {
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{ } /* terminate */
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};
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#ifdef CONFIG_SCHED_SLI
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static void cpu_cgroup_css_offline(struct cgroup_subsys_state *css)
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{
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struct task_group *tg = css_tg(css);
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tg_enable_sli(tg, false);
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}
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#endif
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struct cgroup_subsys cpu_cgrp_subsys = {
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.css_alloc = cpu_cgroup_css_alloc,
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.css_online = cpu_cgroup_css_online,
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.css_released = cpu_cgroup_css_released,
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.css_free = cpu_cgroup_css_free,
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#ifdef CONFIG_SCHED_SLI
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.css_offline = cpu_cgroup_css_offline,
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#endif
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.css_extra_stat_show = cpu_extra_stat_show,
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.fork = cpu_cgroup_fork,
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.can_attach = cpu_cgroup_can_attach,
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@ -115,7 +115,7 @@ void task_cpu_increase_nr_migrations(struct task_struct *tsk)
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static DEFINE_SPINLOCK(sli_tg_lock);
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LIST_HEAD(sli_tg_list);
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static void tg_enable_sli(struct task_group *tg, bool val)
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void tg_enable_sli(struct task_group *tg, bool val)
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{
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spin_lock(&sli_tg_lock);
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if (val && !READ_ONCE(tg->sli_enabled))
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@ -146,7 +146,7 @@ void create_rich_container_reaper(struct task_struct *tsk)
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}
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}
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static int enable_sli_write(struct cgroup_subsys_state *css,
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int enable_sli_write(struct cgroup_subsys_state *css,
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struct cftype *cft, u64 val)
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{
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struct task_group *tg;
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@ -162,7 +162,7 @@ static int enable_sli_write(struct cgroup_subsys_state *css,
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return 0;
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}
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static u64 enable_sli_read(struct cgroup_subsys_state *css, struct cftype *cft)
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u64 enable_sli_read(struct cgroup_subsys_state *css, struct cftype *cft)
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{
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struct task_group *tg;
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@ -215,21 +215,6 @@ out:
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return ERR_PTR(-ENOMEM);
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}
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#ifdef CONFIG_SCHED_SLI
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static void cpuacct_css_offline(struct cgroup_subsys_state *css)
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{
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struct task_group *tg;
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tg = cgroup_tg(css->cgroup);
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if (unlikely(!tg)) {
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WARN_ONCE(1, "cgroup \"cpu,cpuacct\" are not bound together");
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return;
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}
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tg_enable_sli(tg, false);
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}
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#endif
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/* Destroy an existing CPU accounting group */
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static void cpuacct_css_free(struct cgroup_subsys_state *css)
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{
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@ -439,8 +424,7 @@ static int cpuacct_stats_show(struct seq_file *sf, void *v)
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}
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#ifdef CONFIG_SCHED_SLI
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static unsigned long tg_running(struct task_group *tg, int cpu);
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static void __get_cgroup_avenrun(struct task_group *tg, unsigned long *loads,
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void __get_cgroup_avenrun(struct task_group *tg, unsigned long *loads,
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unsigned long offset, int shift, bool running)
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{
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unsigned long *avenrun;
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@ -491,7 +475,7 @@ static inline bool tg_rt_throttled(struct task_group *tg, int cpu)
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}
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#endif
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static unsigned long tg_running(struct task_group *tg, int cpu)
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unsigned long tg_running(struct task_group *tg, int cpu)
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{
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unsigned long nr_running = 0;
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/* Make sure it is only called for non-root cpuacct */
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@ -511,7 +495,7 @@ static unsigned long tg_running(struct task_group *tg, int cpu)
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return nr_running;
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}
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static unsigned long tg_uninterruptible(struct task_group *tg, int cpu)
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unsigned long tg_uninterruptible(struct task_group *tg, int cpu)
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{
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unsigned long nr = 0;
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@ -771,23 +755,22 @@ void calc_cgroup_load(void)
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rcu_read_unlock();
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}
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static void __cpuacct_get_usage_result(struct cpuacct *ca, int cpu,
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struct task_group *tg, struct cpuacct_usage_result *res)
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void __cpuacct_get_usage(struct cgroup_subsys_state *css, int cpu,
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struct cpuacct_usage_result *res)
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{
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struct cpuacct *ca;
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struct kernel_cpustat *kcpustat;
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struct cpuacct_usage *cpuusage;
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struct task_cputime cputime;
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u64 tick_user, tick_nice, tick_sys, tick_irq, tick_softirq;
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u64 left, right, left2, right2;
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struct sched_entity *se;
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ca = cgroup_ca(css->cgroup);
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if (!ca)
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return;
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kcpustat = per_cpu_ptr(ca->cpustat, cpu);
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if (unlikely(!tg)) {
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memset(res, 0, sizeof(*res));
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return;
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}
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se = tg->se[cpu];
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cpuusage = per_cpu_ptr(ca->cpuusage, cpu);
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tick_user = kcpustat->cpustat[CPUTIME_USER];
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tick_nice = kcpustat->cpustat[CPUTIME_NICE];
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@ -825,53 +808,15 @@ static void __cpuacct_get_usage_result(struct cpuacct *ca, int cpu,
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res->irq = left;
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res->softirq = right;
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if (se && schedstat_enabled()) {
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unsigned int seq;
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unsigned long flags;
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u64 idle_start, ineff, ineff_start, elapse, complement;
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u64 clock, iowait_start;
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do {
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seq = read_seqcount_begin(&se->idle_seqcount);
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res->idle = schedstat_val(se->cg_idle_sum);
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idle_start = schedstat_val(se->cg_idle_start);
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clock = cpu_clock(cpu);
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if (idle_start && clock > idle_start)
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res->idle += clock - idle_start;
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} while (read_seqcount_retry(&se->idle_seqcount, seq));
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ineff = schedstat_val(se->cg_ineffective_sum);
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ineff_start = schedstat_val(se->cg_ineffective_start);
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if (ineff_start)
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__schedstat_add(ineff, clock - ineff_start);
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spin_lock_irqsave(&se->iowait_lock, flags);
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res->iowait = schedstat_val(se->cg_iowait_sum);
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iowait_start = schedstat_val(se->cg_iowait_start);
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if (iowait_start)
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__schedstat_add(res->iowait, clock - iowait_start);
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spin_unlock_irqrestore(&se->iowait_lock, flags);
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res->steal = 0;
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elapse = clock - schedstat_val(se->cg_init_time);
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complement = res->idle + se->sum_exec_runtime + ineff;
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if (elapse > complement)
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res->steal = elapse - complement;
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res->idle -= res->iowait;
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} else {
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res->idle = res->iowait = res->steal = 0;
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}
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res->guest = kcpustat->cpustat[CPUTIME_GUEST];
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res->guest_nice = kcpustat->cpustat[CPUTIME_GUEST_NICE];
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}
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static int cpuacct_proc_stats_show(struct seq_file *sf, void *v)
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{
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struct cpuacct *ca = css_ca(seq_css(sf));
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struct cgroup *cgrp = seq_css(sf)->cgroup;
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struct cgroup_subsys_state *css = seq_css(sf);
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struct cpuacct *ca = css_ca(css);
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struct cgroup *cgrp = css->cgroup;
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struct task_group *tg;
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u64 user, nice, system, idle, iowait, irq, softirq, steal, guest;
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u64 nr_migrations = 0;
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@ -897,8 +842,7 @@ static int cpuacct_proc_stats_show(struct seq_file *sf, void *v)
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continue;
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rcu_read_lock();
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__cpuacct_get_usage_result(ca, cpu,
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cgroup_tg(cgrp), &res);
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__cgroup_get_usage_result(css, cpu, &res);
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rcu_read_unlock();
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user += res.user;
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@ -1165,9 +1109,6 @@ static void cpuacct_cgroup_attach(struct cgroup_taskset *tset)
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struct cgroup_subsys cpuacct_cgrp_subsys = {
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.css_alloc = cpuacct_css_alloc,
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.css_free = cpuacct_css_free,
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#ifdef CONFIG_SCHED_SLI
|
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.css_offline = cpuacct_css_offline,
|
||||
#endif
|
||||
.attach = cpuacct_cgroup_attach,
|
||||
.legacy_cftypes = files,
|
||||
.early_init = true,
|
||||
|
|
@ -1506,41 +1447,35 @@ void rich_container_get_usage(enum rich_container_source from,
|
|||
struct cpuacct_usage_result *res)
|
||||
{
|
||||
struct cgroup_subsys_state *css;
|
||||
struct cpuacct *ca_src;
|
||||
struct task_group *tg;
|
||||
|
||||
rcu_read_lock();
|
||||
/* To avoid iterating css for every cpu */
|
||||
if (likely(from == RICH_CONTAINER_REAPER)) {
|
||||
ca_src = task_ca(reaper);
|
||||
css = task_css(reaper, cpu_cgrp_id);
|
||||
goto ok;
|
||||
} else if (from == RICH_CONTAINER_CURRENT) {
|
||||
ca_src = task_ca(current);
|
||||
css = task_css(current, cpu_cgrp_id);
|
||||
goto ok;
|
||||
} else if (from == RICH_CONTAINER_PARENT_CGROUP) {
|
||||
css = task_css(current, cpuacct_cgrp_id)->parent;
|
||||
css = task_css(current, cpu_cgrp_id)->parent;
|
||||
if (!css)
|
||||
ca_src = task_ca(current);
|
||||
else
|
||||
ca_src = css_ca(css);
|
||||
css = task_css(current, cpu_cgrp_id);
|
||||
|
||||
goto ok;
|
||||
}
|
||||
|
||||
css = task_css(current, cpuacct_cgrp_id);
|
||||
css = task_css(current, cpu_cgrp_id);
|
||||
while (css) {
|
||||
if (test_bit(CGRP_RICH_CONTAINER_SOURCE, &css->cgroup->flags))
|
||||
break;
|
||||
css = css->parent;
|
||||
}
|
||||
|
||||
if (css)
|
||||
ca_src = css_ca(css);
|
||||
else
|
||||
ca_src = task_ca(reaper);
|
||||
if (!css)
|
||||
css = task_css(reaper, cpu_cgrp_id);
|
||||
|
||||
ok:
|
||||
tg = cgroup_tg(ca_src->css.cgroup);
|
||||
__cpuacct_get_usage_result(ca_src, cpu, tg, res);
|
||||
__cgroup_get_usage_result(css, cpu, res);
|
||||
rcu_read_unlock();
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -3434,6 +3434,17 @@ struct task_group *cgroup_tg(struct cgroup *cgrp);
|
|||
int sched_lat_stat_show(struct seq_file *sf, void *v);
|
||||
int sched_lat_stat_write(struct cgroup_subsys_state *css,
|
||||
struct cftype *cft, u64 val);
|
||||
void __get_cgroup_avenrun(struct task_group *tg, unsigned long *loads,
|
||||
unsigned long offset, int shift, bool running);
|
||||
unsigned long tg_running(struct task_group *tg, int cpu);
|
||||
unsigned long tg_uninterruptible(struct task_group *tg, int cpu);
|
||||
int enable_sli_write(struct cgroup_subsys_state *css,
|
||||
struct cftype *cft, u64 val);
|
||||
u64 enable_sli_read(struct cgroup_subsys_state *css, struct cftype *cft);
|
||||
void tg_enable_sli(struct task_group *tg, bool val);
|
||||
void __cgroup_get_usage_result(struct cgroup_subsys_state *css, int cpu,
|
||||
struct cpuacct_usage_result *res);
|
||||
|
||||
#else
|
||||
static inline void task_cpu_increase_nr_migrations(struct task_struct *tsk) { }
|
||||
static inline void cpu_update_latency(struct sched_entity *se,
|
||||
|
|
@ -3447,6 +3458,9 @@ static inline bool async_load_calc_enabled(void)
|
|||
}
|
||||
#endif
|
||||
|
||||
void __cpuacct_get_usage(struct cgroup_subsys_state *css, int cpu,
|
||||
struct cpuacct_usage_result *res);
|
||||
|
||||
#ifdef CONFIG_PSI
|
||||
#ifdef CONFIG_CGROUPS
|
||||
extern struct cftype cgroup_v1_psi_files[];
|
||||
|
|
|
|||
Loading…
Reference in New Issue