src/lib/libpmc, branch main FreeBSD source tree libpmc: surface raw TSC in pmclog events 2026-04-16T06:05:21+00:00 Andre Silva andasilv@amd.com 2026-03-31T20:28:04+00:00 fbbf71f5813b041526c4d439d9961e8a8281d291 The pmclog record header carries the raw TSC for each event. Export it in struct pmclog_ev, fix JSON output to emit it unsigned, and preserve the installed header ABI by overlaying pl_tsc with the legacy pl_ts storage. Update pmclog(3) to document the TSC semantics and the legacy alias. Sponsored by: AMD Signed-off-by: Andre Silva <andasilv@amd.com> Reviewed by: imp, mhorne, Ali Mashtizadeh Pull Request: https://github.com/freebsd/freebsd-src/pull/2085 
The pmclog record header carries the raw TSC for each event. Export it
in struct pmclog_ev, fix JSON output to emit it unsigned, and preserve
the installed header ABI by overlaying pl_tsc with the legacy pl_ts
storage.

Update pmclog(3) to document the TSC semantics and the legacy alias.

Sponsored by: AMD
Signed-off-by: Andre Silva <andasilv@amd.com>
Reviewed by: imp, mhorne, Ali Mashtizadeh
Pull Request: https://github.com/freebsd/freebsd-src/pull/2085
pmc: Fix copyright in previous commits 2026-03-25T21:24:18+00:00 Ali Mashtizadeh mashti@uwaterloo.ca 2026-03-25T18:51:21+00:00 98bedca0a4effed7f170be52f7ef3e1ab8a79b11 Fix the copyright attribution to Netflix and the date and missing SPDX line in pmc.ibs man page. Sponsored by: Netflix Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/2094 
Fix the copyright attribution to Netflix and the date and missing SPDX
line in pmc.ibs man page.

Sponsored by: Netflix

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/2094
libpmc/pmu-events: Add support for new json fields 2026-03-24T10:34:12+00:00 Bojan Novković bnovkov@FreeBSD.org 2026-03-21T14:37:44+00:00 6ad94d549eb2286d791abd5634400d8ef36d8259 This change adds support for three new Intel fields to jevents.c: - MetricThreshold - MetricgroupNoGroup - DefaultMetricgroupName Reviewed by: ali_mashtizadeh.com, mhorne Differential Revision: https://reviews.freebsd.org/D56017 MFC after: 1 week 
This change adds support for three new Intel fields to jevents.c:
 - MetricThreshold
 - MetricgroupNoGroup
 - DefaultMetricgroupName

Reviewed by:	ali_mashtizadeh.com, mhorne
Differential Revision:	https://reviews.freebsd.org/D56017
MFC after:	1 week
pmc: Import Intel Meteor Lake events 2026-03-24T10:33:01+00:00 Bojan Novković bnovkov@FreeBSD.org 2026-03-02T21:45:11+00:00 cb9e24221672a7f77c858518c292c1eac09b3740 Obtained from: Intel perfmon (JSON event definitions) Tested by: bms, olivier MFC after: 1 week Reviewed by: ali_mashtizadeh.com, mhorne Differential Revision: https://reviews.freebsd.org/D55641 
Obtained from:	Intel perfmon (JSON event definitions)
Tested by:	bms, olivier
MFC after:	1 week
Reviewed by:	ali_mashtizadeh.com, mhorne
Differential Revision:	https://reviews.freebsd.org/D55641
libpmc: Add support for IBS qualifiers 2026-03-23T20:21:28+00:00 Ali Mashtizadeh mashti@uwaterloo.ca 2026-03-18T04:27:09+00:00 df47355fae720fd8f63f36a50c8933f8342483d2 Add support to libpmc for parsing the IBS qualifiers and computing the ctl register value as a function of the qualifiers and the sample rate. This includes all of the flags available up to AMD Zen 5. Along side these user facing changes I included the documentation for AMD IBS. Reviewed by: mhorne Sponsored by: Netflix Pull Request: https://github.com/freebsd/freebsd-src/pull/2081 
Add support to libpmc for parsing the IBS qualifiers and computing the
ctl register value as a function of the qualifiers and the sample rate.
This includes all of the flags available up to AMD Zen 5.  Along side
these user facing changes I included the documentation for AMD IBS.

Reviewed by:	mhorne
Sponsored by:	Netflix
Pull Request:	https://github.com/freebsd/freebsd-src/pull/2081
libpmc: Query hwpmc for caps 2026-03-16T23:31:15+00:00 Ali Mashtizadeh mashti@uwaterloo.ca 2026-03-01T22:08:30+00:00 44a983d249d05d932b6cff333f130baf70febc22 This change allows for fine-grained capabilities per counter index. This is particularly useful for AMD where subclasses are not exposed to the general PMC code, but other architectures also have asymmetric behaviors when it comes to specific counter indices. A new PMC_OP_GETCAPS op is added to the hwpmc(4) ioctl interface. Reviewed by: mhorne Sponsored by: Netflix Pull Request: https://github.com/freebsd/freebsd-src/pull/2058 
This change allows for fine-grained capabilities per counter index. This
is particularly useful for AMD where subclasses are not exposed to the
general PMC code, but other architectures also have asymmetric behaviors
when it comes to specific counter indices.

A new PMC_OP_GETCAPS op is added to the hwpmc(4) ioctl interface.

Reviewed by:	mhorne
Sponsored by:	Netflix
Pull Request:	https://github.com/freebsd/freebsd-src/pull/2058
jevents: include file path in whitelist error message 2026-03-16T23:25:46+00:00 Mitchell Horne mhorne@FreeBSD.org 2026-03-16T23:25:00+00:00 f0e0c4c52971f58d41a89690d402520500d286bd A small enhancement. Reviewed by: Ali Mashtizadeh <ali@mashtizadeh.com> Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D55830 
A small enhancement.

Reviewed by:	Ali Mashtizadeh <ali@mashtizadeh.com>
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D55830
libpmc: Explicitly whitelist json fields 2026-03-10T22:20:17+00:00 Ali Mashtizadeh ali@mashtizadeh.com 2026-02-28T20:45:27+00:00 bfb2fd5f66183454cfe8771595df09c0f23c7efb Adds all missing Intel fields and turns jevents.c into an explicit white list mechanism so that we no longer ignore important fields that often invalidate the counter. The json event parser must now parse every field on each architecture that we support. This has been tested by running tinderbox and manually running jevent against our current json repository. As a bonus I fixed spelling errors in the AMD JSON definitions. Sponsored by: Netflix Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/2055 
Adds all missing Intel fields and turns jevents.c into an explicit white
list mechanism so that we no longer ignore important fields that often
invalidate the counter.  The json event parser must now parse every
field on each architecture that we support.  This has been tested by
running tinderbox and manually running jevent against our current json
repository.  As a bonus I fixed spelling errors in the AMD JSON
definitions.

Sponsored by: Netflix

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/2055
libpmc: Import AMD Zen 6 PMU events. 2026-02-27T21:27:35+00:00 Ali Mashtizadeh mashti@uwaterloo.ca 2026-02-24T15:52:00+00:00 178d0b5b8da7480f455273aedf40dd8f1e785d3f Sponsored by: Netflix Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/2049 
Sponsored by: Netflix

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/2049
libpmc: Update event definitions for AMD Zen 2026-02-27T21:26:34+00:00 Ali Mashtizadeh mashti@uwaterloo.ca 2026-02-24T15:36:03+00:00 3ce3e896acf6cd504514ee44fc3aedcdc48a199c The pmu event definitions for AMD Zen 5 was updated since it was imported into the tree. As a bonus I also updated the recommended json counters for Zen 1-3 even though we do not use that file yet. Sponsored by: Netflix Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/2048 
The pmu event definitions for AMD Zen 5 was updated since it was
imported into the tree.  As a bonus I also updated the recommended json
counters for Zen 1-3 even though we do not use that file yet.

Sponsored by: Netflix

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/2048