Refactoring perf metric support to remove branching on bundle type in
the dispatch wrapper. This change includes caching the rdpmc index at
perfmon_start(), so that the mmap_page.index doesn't need to be looked
up each time. It also exclude the effects of mmap_page.index.
This patch prepares the path for bundles that support general, fixed and
metrics counters simulataneously.
Type: refactor
Signed-off-by: Ray Kinsella <mdr@ashroe.eu>
Change-Id: I9c5b4917bd02fea960e546e8558452c4362eabc4
Add missing array index so that actual mmapped pages are unmpapped
instead of attempting to unmap array holding those pages.
Type: fix
Signed-off-by: Klement Sekera <ksekera@cisco.com>
Change-Id: Ib8709cce1bcbfb505307c140266834b284af796c
Add a check bundle is supported before futher activation.
Enable different bundles with same name, supported on different platforms.
Type: improvement
Signed-off-by: Ray Kinsella <mdr@ashroe.eu>
Change-Id: I73e8bbd1e07c05ebccd9146d48a234eb598a2388
Allow perfmon bundles to support more than one bundle type, either node
or thread. Only used for topdown bundle for the moment.
Type: improvement
Signed-off-by: Ray Kinsella <mdr@ashroe.eu>
Change-Id: Iba3653a4deb39b0a8ee8ad448a7e8f954283ccd8
Adding perfmon node TMAM support on ICX.
Type: improvement
Signed-off-by: Ray Kinsella <mdr@ashroe.eu>
Change-Id: I48a9a9ff6a72efc28eaf0cb11ef39fb62cebb126
Original set, start, stop, reset, show etc interface was somewhat cumbersome, we
can improve slightly by combining set and start.
Type: improvement
Signed-off-by: Ray Kinsella <mdr@ashroe.eu>
Change-Id: I7b865b2c29d2ab32adbd24d7f8a580da6990bb76
Add perfmon plugin support to output raw counter and timestamps, both
are useful for debug.
Type: improvement
Signed-off-by: Ray Kinsella <mdr@ashroe.eu>
Change-Id: Ia5a73d1f05e3464c18991c2346f0ed8b7ef63099
Callbacks for monitoring and performance measurement:
- Add new callback list type, with context
- Add callbacks for API, CLI, and barrier sync
- Modify node dispatch callback to pass plugin-specific context
- Modify perfmon plugin to keep PMC samples local to the plugin
- Include process nodes in dispatch callback
- Pass dispatch function return value to callback
Type: refactor
Signed-off-by: Tom Seidenberg <tseidenb@cisco.com>
Change-Id: I28b06c58490611e08d76ff5b01b2347ba2109b22
When perfmon_init is called at initialization time worker threads are
not created yet and vec_len(vlib_mains) returns 1.
Initialize per-worker data when the number of workers is known, when
enabling data collection instead.
Type: fix
Change-Id: I36887cc7b2a3e88d9728d3cd7262d9b1c968dd3c
Signed-off-by: Benoît Ganne <bganne@cisco.com>
- Make plugin descriptions more consistent
so the output of "show plugin" can be
used in the wiki.
Change-Id: I4c6feb11e7dcc5a4cf0848eed37f1d3b035c7dda
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Add missing pre-input node runtime fork and refork code.
unix-epoll-input runs on all threads; each instance needs its own
runtime stats.
Change-Id: I16b02e42d0c95f863161176c4bb9f9917bef809d
Signed-off-by: Dave Barach <dave@barachs.net>
As a FUD reduction measure, this patch implements 2-way parallel
counter collection. Synthetic stat component counter pairs run at the
same time. Running two counters (of any kind) at the same time
naturally reduces the aggregate time required by an approximate
factor-of-2, depending on whether an even or odd number of stats have
been requested.
I don't completely buy the argument that computing synthetic stats
such as instructions-per-clock will be inaccurate if component counter
values are collected sequentially. Given uniform traffic pattern, it
must make no difference.
As the collection interval increases, the difference between serial
and parallel component counter collection will approach zero, see also
the Central Limit theorem.
Change-Id: I36ebdcf125e8882cca8a1929ec58f17fba1ad8f1
Signed-off-by: Dave Barach <dave@barachs.net>
