The "threadX_name" variables are not used anywhere except
creating the thread. Instead use the names directly.
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I6bdb2eb1d1e96fe888a4d5d9765fc0b0dfa74272
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8794
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Michal Berger <michalx.berger@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
It's not needed anymore since we pick up now last idle sample in
comparision to remaining states given cpu spent time in. This way
we get the faster view if in given moment cpu is busy or not.
Signed-off-by: Michal Berger <michalx.berger@intel.com>
Change-Id: I3677c03ee3c2e42662df35dd0a6e7b5b6b1f98ed
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7565
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Karol Latecki <karol.latecki@intel.com>
Signed-off-by: Michal Berger <michalx.berger@intel.com>
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I72da312e0d7fe71ae40b582501b52be615de4b63
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7564
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This is done in order to detect cpu times in a more deterministic
fashion.
Signed-off-by: Michal Berger <michalx.berger@intel.com>
Change-Id: I005d6fececdc15500bcf637e96f2fbecbd4273f1
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7563
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Related to #1950
In the issue, CPU idle time measured from /proc/stats make it
seem like no reactor goes idle.
If true, then it would help for debugging to check stats from reactors.
Their busy/idle time and number of threads on them.
This patch reorders the checks in interrupt test,
to first show reactor stats, then confirm with idle time from
/proc/stats.
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Ia1770833828ef688110473e45ed5998d213059f3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8223
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
check if the thread is moved to the main core after it becomes idle.
Change-Id: I3ee38ee16d755cc9dea5fa10d9f8ba42507408ff
Signed-off-by: Richael Zhuang <richael.zhuang@arm.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7853
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Krzysztof Karas <krzysztof.karas@intel.com>
Reviewed-by: Xiaodong Liu <xiaodong.liu@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Previously core load was only considered for main lcore.
Other cores were used based on cpumask only.
Once an active thread was placed on core it remained there
until idle. If _get_next_target_core() looped around,
the core might receive another active thread.
This patch makes the core load matter for placement of any thread.
As of this patch if no core can fit a thread it will remain there.
Later in the series least busy core will be used to balance
threads when every core is already busy.
Modified the functional test that depended on always selecting
consecutive core, even if 'current' one fit the bill.
Later in the series the round robin logic for core selection
is removed all together.
Fixed typo in test while here.
Note: _can_core_fit_thread() intentionally does not check
core->interrupt_mode and uses tsc. That flag is only updated
at the end of balancing right now. Meanwhile tsc is updated
one first thread moved to the core, so it is no longer
considered in interrupt mode.
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I95f58c94e3f5ae8a468723d1dd6e53b0e417dcc3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/8069
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Passing cpu_mask hints that match only single core were
usefull to prevent any accidents when doing round-robin
in case of 'static' scheduler.
In practice this is not required in case of 'static' scheduler,
the threads will be spread out over all reactors anyway.
This hinders other schedulers which try to respect the cpu_mask
hints, as they would not move the thread to any reactor.
Preventing bunching up less used threads on single reactor.
Drawback of this patch is that poll group names will not match
the cores they are on.
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I5fb308362dd045228ea9fcca24f988388854c054
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7028
Community-CI: Broadcom CI
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: <dongx.yi@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Also, create a common dir which will hold symlinks to all existing
plugins used in the tests. Location of the actual lib is not changed
so the relation to the given test suite is clearly preserved.
Signed-off-by: Michal Berger <michalx.berger@intel.com>
Change-Id: Icb70bbc61fbfa3325a357d5dd93f554ff132a3b9
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/7146
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This is done in order to easier troubleshoot issues like #1784.
Signed-off-by: Michal Berger <michalx.berger@intel.com>
Change-Id: Icabccab92dd48aa85a505d34013181e66c89fa1a
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6800
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Xiaodong Liu <xiaodong.liu@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Simplify the test to follow the scheduler period in order to check if
target thread is properly balanced among selected cpus.
Signed-off-by: Michal Berger <michalx.berger@intel.com>
Change-Id: I326ad1171ca00c3d171aebe95266c5e4998abad3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6337
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Issues like https://github.com/spdk/spdk/issues/1784 showed that
governor may need some more time to properly adjust cpufreq's sysfs
knobs. In case we see that frequency setting hasn't changed after
given iteration, wait for 0.5s to make sure it finally settles.
Signed-off-by: Michal Berger <michalx.berger@intel.com>
Change-Id: Ibf25d0d1962bf2b07b13d60d6096c5cc185c1279
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6283
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Community-CI: Mellanox Build Bot
Also, move all the functions wrapping the scheduler app into
common.sh.
Signed-off-by: Michal Berger <michalx.berger@intel.com>
Change-Id: I63c1002f867128851cff04a035c6c51c50e10383
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6053
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
This also introduces scheduler tests in the autotest pool.
Signed-off-by: Michal Berger <michalx.berger@intel.com>
Change-Id: I892a2374e21dab0e349c655dcafaa4cc2e45fdc1
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5741
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Setup boils down to selecting CPUs for exclusive use by SPDK
app(s).
Signed-off-by: Michal Berger <michalx.berger@intel.com>
Change-Id: Ie3af44d16f3f220aeca97b2d65a99297016884dc
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5739
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Karol Latecki <karol.latecki@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
This main goal of this "library" is to provide the following:
- Handling view of the cpu|numa topology as seen by the kernel
- Mapping cpufreq subsystem to cross-reference it with how
DPDK's librte_power governor behaves.
Signed-off-by: Michal Berger <michalx.berger@intel.com>
Change-Id: I0fca41eefeea3949102e7546c227e0d36811a269
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5738
Community-CI: Broadcom CI
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Karol Latecki <karol.latecki@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
This tool simply returns contents of EAX|ECX registers for a specific
MSR. Targeted use is to compare DPDK's governor results while working
under intel_pstate driver.
Change-Id: I40b3f3601d41e45ba65c96b99ebd1b6949b5af20
Signed-off-by: Michal Berger <michalx.berger@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5737
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Karol Latecki <karol.latecki@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
