From: Dario Faggioli <dario.faggioli@citrix.com>
To: xen-devel@lists.xenproject.org
Cc: George Dunlap <george.dunlap@eu.citrix.com>,
Wei Liu <wei.liu2@citrix.com>,
Ian Jackson <ian.jackson@eu.citrix.com>
Subject: [PATCH v2 07/10] tools: tracing: handle more scheduling related events.
Date: Fri, 30 Sep 2016 04:54:07 +0200 [thread overview]
Message-ID: <147520404731.22544.7519219925656124086.stgit@Solace.fritz.box> (raw)
In-Reply-To: <147520253247.22544.10673844222866363947.stgit@Solace.fritz.box>
There are some scheduling related trace records that
are not being taken care of (and hence only dumped as
raw records).
Some of them are being introduced in this series, while
other were just neglected by previous patches.
Add support for them.
Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Acked-by: George Dunlap <george.dunlap@eu.citrix.com>
---
Cc: Ian Jackson <ian.jackson@eu.citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
---
Changes from v1:
* only the one made necessary by the packing done to Credit1 records. Those
were requested by George himself, and the effect on this patch is small,
and purely mechanic, so I decided to keep his Ack.
---
tools/xentrace/formats | 8 ++++
tools/xentrace/xenalyze.c | 101 +++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 109 insertions(+)
diff --git a/tools/xentrace/formats b/tools/xentrace/formats
index 0de7990..db89f92 100644
--- a/tools/xentrace/formats
+++ b/tools/xentrace/formats
@@ -42,6 +42,10 @@
0x00022004 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) csched:stolen_vcpu [ dom:vcpu = 0x%(2)04x%(3)04x, from = %(1)d ]
0x00022005 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) csched:picked_cpu [ dom:vcpu = 0x%(1)04x%(2)04x, cpu = %(3)d ]
0x00022006 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) csched:tickle [ cpu = %(1)d ]
+0x00022007 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) csched:boost [ dom:vcpu = 0x%(1)04x%(2)04x ]
+0x00022008 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) csched:unboost [ dom:vcpu = 0x%(1)04x%(2)04x ]
+0x00022009 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) csched:schedule [ cpu[16]:tasklet[8]:idle[8] = %(1)08x ]
+0x0002200A CPU%(cpu)d %(tsc)d (+%(reltsc)8d) csched:ratelimit [ dom:vcpu = 0x%(1)08x, runtime = %(2)d ]
0x00022201 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) csched2:tick
0x00022202 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) csched2:runq_pos [ dom:vcpu = 0x%(1)08x, pos = %(2)d]
@@ -61,12 +65,16 @@
0x00022210 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) csched2:load_check [ lrq_id[16]:orq_id[16] = 0x%(1)08x, delta = %(2)d ]
0x00022211 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) csched2:load_balance [ l_bavgload = 0x%(2)08x%(1)08x, o_bavgload = 0x%(4)08x%(3)08x, lrq_id[16]:orq_id[16] = 0x%(5)08x ]
0x00022212 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) csched2:pick_cpu [ b_avgload = 0x%(2)08x%(1)08x, dom:vcpu = 0x%(3)08x, rq_id[16]:new_cpu[16] = %(4)d ]
+0x00022213 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) csched2:runq_candidate [ dom:vcpu = 0x%(1)08x, skipped_vcpus = %(2)d tickled_cpu = %(3)d ]
+0x00022214 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) csched2:schedule [ rq:cpu = 0x%(1)08x, tasklet[8]:idle[8]:smt_idle[8]:tickled[8] = %(2)08x ]
+0x00022215 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) csched2:ratelimit [ dom:vcpu = 0x%(1)08x, runtime = %(2)d ]
0x00022801 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) rtds:tickle [ cpu = %(1)d ]
0x00022802 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) rtds:runq_pick [ dom:vcpu = 0x%(1)08x, cur_deadline = 0x%(3)08x%(2)08x, cur_budget = 0x%(5)08x%(4)08x ]
0x00022803 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) rtds:burn_budget [ dom:vcpu = 0x%(1)08x, cur_budget = 0x%(3)08x%(2)08x, delta = %(4)d ]
0x00022804 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) rtds:repl_budget [ dom:vcpu = 0x%(1)08x, cur_deadline = 0x%(3)08x%(2)08x, cur_budget = 0x%(5)08x%(4)08x ]
0x00022805 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) rtds:sched_tasklet
+0x00022806 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) rtds:schedule [ cpu[16]:tasklet[8]:idle[4]:tickled[4] = %(1)08x ]
0x00041001 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) domain_create [ dom = 0x%(1)08x ]
0x00041002 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) domain_destroy [ dom = 0x%(1)08x ]
diff --git a/tools/xentrace/xenalyze.c b/tools/xentrace/xenalyze.c
index 0b697d0..f006804 100644
--- a/tools/xentrace/xenalyze.c
+++ b/tools/xentrace/xenalyze.c
@@ -7590,6 +7590,50 @@ void sched_process(struct pcpu_info *p)
ri->dump_header, r->cpu);
}
break;
+ case TRC_SCHED_CLASS_EVT(CSCHED, 7): /* BOOST_START */
+ if(opt.dump_all) {
+ struct {
+ unsigned int domid, vcpuid;
+ } *r = (typeof(r))ri->d;
+
+ printf(" %s csched: d%uv%u boosted\n",
+ ri->dump_header, r->domid, r->vcpuid);
+ }
+ break;
+ case TRC_SCHED_CLASS_EVT(CSCHED, 8): /* BOOST_END */
+ if(opt.dump_all) {
+ struct {
+ unsigned int domid, vcpuid;
+ } *r = (typeof(r))ri->d;
+
+ printf(" %s csched: d%uv%u unboosted\n",
+ ri->dump_header, r->domid, r->vcpuid);
+ }
+ break;
+ case TRC_SCHED_CLASS_EVT(CSCHED, 9): /* SCHEDULE */
+ if(opt.dump_all) {
+ struct {
+ unsigned int cpu:16, tasklet:8, idle:8;
+ } *r = (typeof(r))ri->d;
+
+ printf(" %s csched:schedule cpu %u, %s%s\n",
+ ri->dump_header, r->cpu,
+ r->tasklet ? ", tasklet scheduled" : "",
+ r->idle ? ", idle" : ", busy");
+ }
+ break;
+ case TRC_SCHED_CLASS_EVT(CSCHED, 10): /* RATELIMIT */
+ if(opt.dump_all) {
+ struct {
+ unsigned int vcpuid:16, domid:16;
+ unsigned int runtime;
+ } *r = (typeof(r))ri->d;
+
+ printf(" %s csched:ratelimit, d%uv%u run only %u.%uus\n",
+ ri->dump_header, r->domid, r->vcpuid,
+ r->runtime / 1000, r->runtime % 1000);
+ }
+ break;
/* CREDIT 2 (TRC_CSCHED2_xxx) */
case TRC_SCHED_CLASS_EVT(CSCHED2, 1): /* TICK */
case TRC_SCHED_CLASS_EVT(CSCHED2, 4): /* CREDIT_ADD */
@@ -7776,6 +7820,50 @@ void sched_process(struct pcpu_info *p)
ri->dump_header, r->domid, r->vcpuid, r->rqi, r->cpu);
}
break;
+ case TRC_SCHED_CLASS_EVT(CSCHED2, 20): /* RUNQ_CANDIDATE */
+ if (opt.dump_all) {
+ struct {
+ unsigned vcpuid:16, domid:16;
+ unsigned tickled_cpu, skipped;
+ } *r = (typeof(r))ri->d;
+
+ printf(" %s csched2:runq_candidate d%uv%u, "
+ "%u vcpus skipped, ",
+ ri->dump_header, r->domid, r->vcpuid,
+ r->skipped);
+ if (r->tickled_cpu == (unsigned)-1)
+ printf("no cpu was tickled\n");
+ else
+ printf("cpu %u was tickled\n", r->tickled_cpu);
+ }
+ break;
+ case TRC_SCHED_CLASS_EVT(CSCHED2, 21): /* SCHEDULE */
+ if (opt.dump_all) {
+ struct {
+ unsigned cpu:16, rqi:16;
+ unsigned tasklet:8, idle:8, smt_idle:8, tickled:8;
+ } *r = (typeof(r))ri->d;
+
+ printf(" %s csched2:schedule cpu %u, rq# %u%s%s%s%s\n",
+ ri->dump_header, r->cpu, r->rqi,
+ r->tasklet ? ", tasklet scheduled" : "",
+ r->idle ? ", idle" : ", busy",
+ r->idle ? (r->smt_idle ? ", SMT idle" : ", SMT busy") : "",
+ r->tickled ? ", tickled" : ", not tickled");
+ }
+ break;
+ case TRC_SCHED_CLASS_EVT(CSCHED2, 22): /* RATELIMIT */
+ if (opt.dump_all) {
+ struct {
+ unsigned int vcpuid:16, domid:16;
+ unsigned int runtime;
+ } *r = (typeof(r))ri->d;
+
+ printf(" %s csched2:ratelimit, d%uv%u run only %u.%uus\n",
+ ri->dump_header, r->domid, r->vcpuid,
+ r->runtime / 1000, r->runtime % 1000);
+ }
+ break;
/* RTDS (TRC_RTDS_xxx) */
case TRC_SCHED_CLASS_EVT(RTDS, 1): /* TICKLE */
if(opt.dump_all) {
@@ -7828,6 +7916,19 @@ void sched_process(struct pcpu_info *p)
if(opt.dump_all)
printf(" %s rtds:sched_tasklet\n", ri->dump_header);
break;
+ case TRC_SCHED_CLASS_EVT(RTDS, 6): /* SCHEDULE */
+ if (opt.dump_all) {
+ struct {
+ unsigned cpu:16, tasklet:8, idle:4, tickled:4;
+ } __attribute__((packed)) *r = (typeof(r))ri->d;
+
+ printf(" %s rtds:schedule cpu %u, %s%s%s\n",
+ ri->dump_header, r->cpu,
+ r->tasklet ? ", tasklet scheduled" : "",
+ r->idle ? ", idle" : ", busy",
+ r->tickled ? ", tickled" : ", not tickled");
+ }
+ break;
default:
process_generic(ri);
}
_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xen.org
https://lists.xen.org/xen-devel
next prev parent reply other threads:[~2016-09-30 2:54 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-30 2:53 [PATCH v2 00/10] sched: Credit1 and Credit2 improvements... but *NO* soft-affinity for Credit2! Dario Faggioli
2016-09-30 2:53 ` [PATCH v2 01/10] xen: credit1: return the 'time remaining to the limit' as next timeslice Dario Faggioli
2016-09-30 11:16 ` George Dunlap
2016-09-30 2:53 ` [PATCH v2 02/10] xen: credit1: don't rate limit context switches in case of yields Dario Faggioli
2016-09-30 11:18 ` George Dunlap
2016-09-30 2:53 ` [PATCH v2 03/10] xen: credit2: make tickling more deterministic Dario Faggioli
2016-09-30 11:25 ` George Dunlap
2016-09-30 2:53 ` [PATCH v2 04/10] xen: credit2: only reset credit on reset condition Dario Faggioli
2016-09-30 11:28 ` George Dunlap
2016-09-30 12:25 ` anshul makkar
2016-09-30 12:57 ` Dario Faggioli
2016-09-30 2:53 ` [PATCH v2 05/10] xen: credit2: implement yield() Dario Faggioli
2016-09-30 12:52 ` George Dunlap
2016-09-30 14:01 ` Dario Faggioli
2016-09-30 2:54 ` [PATCH v2 06/10] xen: tracing: add trace records for schedule and rate-limiting Dario Faggioli
2016-09-30 13:16 ` George Dunlap
2016-10-01 0:18 ` Meng Xu
2016-09-30 2:54 ` Dario Faggioli [this message]
2016-09-30 10:22 ` [PATCH v2 07/10] tools: tracing: handle more scheduling related events Ian Jackson
2016-09-30 2:54 ` [PATCH v2 08/10] libxl: fix coding style of credit1 parameters related functions Dario Faggioli
2016-09-30 10:24 ` Ian Jackson
2016-09-30 12:04 ` Dario Faggioli
2016-09-30 13:25 ` George Dunlap
2016-09-30 2:54 ` [PATCH v2 09/10] libxl: allow to set the ratelimit value online for Credit2 Dario Faggioli
2016-09-30 10:30 ` Ian Jackson
2016-09-30 10:33 ` George Dunlap
2016-09-30 10:35 ` Ian Jackson
2016-09-30 12:37 ` Dario Faggioli
2016-09-30 2:54 ` [PATCH v2 10/10] xl: " Dario Faggioli
2016-09-30 10:34 ` Ian Jackson
2016-09-30 15:54 ` Dario Faggioli
2016-09-30 16:02 ` Ian Jackson
2016-10-13 22:19 ` Jim Fehlig
2016-10-14 11:31 ` George Dunlap
2016-09-30 13:51 ` [PATCH v2 00/10] sched: Credit1 and Credit2 improvements... but *NO* soft-affinity for Credit2! George Dunlap
2016-09-30 14:06 ` Dario Faggioli
2016-09-30 14:10 ` George Dunlap
2016-09-30 14:12 ` Dario Faggioli
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=147520404731.22544.7519219925656124086.stgit@Solace.fritz.box \
--to=dario.faggioli@citrix.com \
--cc=george.dunlap@eu.citrix.com \
--cc=ian.jackson@eu.citrix.com \
--cc=wei.liu2@citrix.com \
--cc=xen-devel@lists.xenproject.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).