Waiman Long 20a387c381 workqueue: Add pwq->stats[] and a monitoring script ... JIRA: https://issues.redhat.com/browse/RHEL-25103 commit 725e8ec59c56c65fb92e343c10a8842cd0d4f194 Author: Tejun Heo <tj@kernel.org> Date: Wed, 17 May 2023 17:02:08 -1000 workqueue: Add pwq->stats[] and a monitoring script Currently, the only way to peer into workqueue operations is through tracing. While possible, it isn't easy or convenient to monitor per-workqueue behaviors over time this way. Let's add pwq->stats[] that track relevant events and a drgn monitoring script - tools/workqueue/wq_monitor.py. It's arguable whether this needs to be configurable. However, it currently only has several counters and the runtime overhead shouldn't be noticeable given that they're on pwq's which are per-cpu on per-cpu workqueues and per-numa-node on unbound ones. Let's keep it simple for the time being. v2: Patch reordered to earlier with fewer fields. Field will be added back gradually. Help message improved. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Signed-off-by: Waiman Long <longman@redhat.com>		2024-05-03 13:39:23 -04:00
..
bpf	bpf, tcx: Get rid of tcx_link_const	2024-04-04 16:30:18 +02:00
cgroup	Merge: cgroup: cgroup-v1: do not exclude cgrp_dfl_root	2024-04-22 12:44:40 +00:00
configs	mm, slob: rename CONFIG_SLOB to CONFIG_SLOB_DEPRECATED	2024-04-09 09:42:54 -04:00
debug	mm: remove vmacache	2024-04-01 11:19:46 -04:00
dma	Reapply "dma-mapping: reject __GFP_COMP in dma_alloc_attrs"	2024-02-19 10:00:36 -08:00
entry	entry: kmsan: introduce kmsan_unpoison_entry_regs()	2023-10-20 06:14:42 -04:00
events	Merge: perf: Sync with upstream v6.8	2024-04-24 19:39:17 +00:00
futex	futex: Prevent the reuse of stale pi_state	2024-03-27 10:12:24 -04:00
gcov	…
irq	x86/pci/xen: populate MSI sysfs entries	2024-03-20 09:43:03 -04:00
kcsan	panic: Consolidate open-coded panic_on_warn checks	2024-04-09 09:43:00 -04:00
livepatch	Merge: livepatch: selected fixes for rhel-9.4	2023-11-13 10:15:36 +01:00
locking	locking/rtmutex: Add a lockdep assert to catch potential nested blocking	2024-03-27 10:06:01 -04:00
power	workqueue: Introduce show_freezable_workqueues	2024-05-03 13:39:23 -04:00
printk	Merge: arch/x86: backport	2024-03-26 11:25:15 -04:00
rcu	rcu: Remove rcu_is_idle_cpu()	2024-03-20 09:42:38 -04:00
sched	Merge: futex: Rebase futex code to v6.8	2024-04-29 14:06:58 +00:00
time	vdso/timens: Refactor copy-pasted find_timens_vvar_page() helper into one copy	2024-03-20 09:42:49 -04:00
trace	Merge: block: open block device as file	2024-04-29 14:05:40 +00:00
.gitignore	…
Kconfig.freezer	…
Kconfig.hz	…
Kconfig.locks	…
Kconfig.preempt	…
Makefile	kernel: add platform_has() infrastructure	2024-03-20 09:42:37 -04:00
acct.c	acct: use VMA iterator instead of linked list	2024-04-01 11:19:51 -04:00
async.c	Revert "module, async: async_synchronize_full() on module init iff async is used"	2024-05-03 13:39:22 -04:00
audit.c	audit: move trailing statements to next line	2023-12-08 13:36:23 -03:00
audit.h	audit: correct audit_filter_inodes() definition	2023-12-08 13:36:03 -03:00
audit_fsnotify.c	…
audit_tree.c	…
audit_watch.c	audit: don't WARN_ON_ONCE(!current->mm) in audit_exe_compare()	2023-11-21 10:44:01 +01:00
auditfilter.c	audit: move trailing statements to next line	2023-12-08 13:36:23 -03:00
auditsc.c	netfilter: nf_tables: Audit log rule reset	2023-12-08 13:39:15 -03:00
backtracetest.c	…
bounds.c	mm: multi-gen LRU: minimal implementation	2023-10-20 06:13:45 -04:00
capability.c	…
cfi.c	…
compat.c	…
configs.c	…
context_tracking.c	…
cpu.c	cpu/hotplug: Remove dependancy against cpu_primary_thread_mask	2024-02-06 10:17:15 -05:00
cpu_pm.c	…
crash_core.c	mm, treewide: redefine MAX_ORDER sanely	2023-10-30 09:12:37 +01:00
crash_dump.c	…
cred.c	…
delayacct.c	…
dma.c	…
exec_domain.c	…
exit.c	kernel: exit: cleanup release_thread()	2024-03-20 09:42:40 -04:00
extable.c	sections: move and rename core_kernel_data() to is_kernel_core_data()	2024-03-20 09:43:21 -04:00
fail_function.c	…
fork.c	mm: remove the vma linked list	2024-04-01 11:19:57 -04:00
freezer.c	…
gen_kheaders.sh	…
groups.c	…
hung_task.c	…
iomem.c	…
irq_work.c	…
jump_label.c	jump_label: make initial NOP patching the special case	2024-03-20 09:43:04 -04:00
kallsyms.c	…
kallsyms_internal.h	…
kcmp.c	…
kcov.c	kcov: kmsan: unpoison area->list in kcov_remote_area_put()	2023-10-20 06:14:40 -04:00
kexec.c	…
kexec_core.c	kexec: do syscore_shutdown() in kernel_kexec	2024-01-23 06:06:00 -05:00
kexec_elf.c	…
kexec_file.c	…
kexec_internal.h	…
kheaders.c	…
kmod.c	…
kprobes.c	x86/kprobes: Fix arch_check_optimized_kprobe check within optimized_kprobe range	2024-03-20 09:42:59 -04:00
ksysfs.c	…
kthread.c	treewide: Drop WARN_ON_FUNCTION_MISMATCH	2024-05-03 13:39:22 -04:00
latencytop.c	…
module-internal.h	…
module.c	Revert "module, async: async_synchronize_full() on module init iff async is used"	2024-05-03 13:39:22 -04:00
module_signature.c	…
module_signing.c	…
notifier.c	notifier: Add atomic_notifier_call_chain_is_empty()	2024-03-20 09:42:36 -04:00
nsproxy.c	Revert "fs/exec: allow to unshare a time namespace on vfork+exec"	2023-10-20 06:13:08 -04:00
padata.c	padata: Fix refcnt handling in padata_free_shell()	2023-12-06 16:23:46 -03:00
panic.c	panic: Expose "warn_count" to sysfs	2024-04-09 09:43:00 -04:00
params.c	kobject: kset_uevent_ops: make filter() callback take a const *	2023-10-23 10:35:56 -05:00
pid.c	…
pid_namespace.c	rcu-tasks: Fix synchronize_rcu_tasks() VS zap_pid_ns_processes()	2023-09-22 13:21:34 -04:00
platform-feature.c	kernel: add platform_has() infrastructure	2024-03-20 09:42:37 -04:00
profile.c	profile: setup_profiling_timer() is moslty not implemented	2024-03-20 09:42:39 -04:00
ptrace.c	…
range.c	…
reboot.c	kernel/reboot: Add do_kernel_power_off()	2024-03-20 09:42:36 -04:00
regset.c	…
relay.c	…
resource.c	…
resource_kunit.c	…
rh_messages.c	kernel/rh_messages.c: Mark functions as possibly unused	2023-11-09 19:58:08 -05:00
rh_messages.h	Deprecate qla4xxx in RHEL-9	2024-03-06 14:06:57 -08:00
rh_shadowman.c	…
rseq.c	…
scftorture.c	…
scs.c	…
seccomp.c	…
signal.c	signal: Add proper comment about the preempt-disable in ptrace_stop().	2023-11-06 12:29:40 +01:00
smp.c	smp: don't declare nr_cpu_ids if NR_CPUS == 1	2024-03-20 09:42:41 -04:00
smpboot.c	cpu/hotplug: Remove unused state functions	2024-02-06 10:17:13 -05:00
smpboot.h	…
softirq.c	…
stackleak.c	…
stacktrace.c	…
static_call.c	…
static_call_inline.c	…
stop_machine.c	…
sys.c	…
sys_ni.c	futex: Add sys_futex_requeue()	2024-03-27 10:06:08 -04:00
sysctl-test.c	…
sysctl.c	Merge: perf: Sync with upstream v6.8	2024-04-24 19:39:17 +00:00
task_work.c	…
taskstats.c	…
test_kprobes.c	test_kprobes: Add recursed kprobe test case	2023-11-02 15:26:56 -06:00
torture.c	…
tracepoint.c	…
tsacct.c	…
ucount.c	…
uid16.c	…
uid16.h	…
umh.c	freezer,umh: Clean up freezer/initrd interaction	2023-10-20 06:13:12 -04:00
up.c	…
user-return-notifier.c	…
user.c	…
user_namespace.c	…
usermode_driver.c	…
utsname.c	…
utsname_sysctl.c	…
watch_queue.c	…
watchdog.c	…
watchdog_hld.c	…
workqueue.c	workqueue: Add pwq->stats[] and a monitoring script	2024-05-03 13:39:23 -04:00
workqueue_internal.h	…