[perf metricgroup] fcc9c5243c: perf-sanity-tests.Parse_and_process_metrics.fail

John Garry john.garry at huawei.com
Mon Oct 19 13:04:49 EDT 2020 

On 19/10/2020 17:20, Ian Rogers wrote:
>>> n
>> So this named patch ("perf metricgroup: Hack a fix for aliases...") is
>> breaking test #67 on my machine also, which is a broadwell.
> Thanks for taking a look John. If you want help you can send the
> output of "perf test 67 -vvv" to me. It is possible Broadwell has
> similar glitches in the json to Skylake. I tested the original test on
> server parts as I can access them as cloud machines.

Here it is:

john at localhost:~/kernel-dev7/tools/perf> ./perf test -vv 67
Couldn't bump rlimit(MEMLOCK), failures may take place when creating BPF 
maps, etc
67: Parse and process metrics                             :
--- start ---
test child forked, pid 24433
metric expr inst_retired.any / cpu_clk_unhalted.thread for IPC
parsing metric: inst_retired.any / cpu_clk_unhalted.thread
found event inst_retired.any
found event cpu_clk_unhalted.thread
adding {inst_retired.any,cpu_clk_unhalted.thread}:W
Attempting to add event pmu 'inst_retired.any' with '' that may result 
in non-fatal errors
Attempting to add event pmu 'cpu_clk_unhalted.thread' with '' that may 
result in non-fatal errors
parsing metric: inst_retired.any / cpu_clk_unhalted.thread
lookup: is_ref 0, counted 0, val 300.000000: inst_retired.any
lookup: is_ref 0, counted 101, val 200.000000: cpu_clk_unhalted.thread
metric expr idq_uops_not_delivered.core / (4 * (( ( 
cpu_clk_unhalted.thread / 2 ) * ( 1 + cpu_clk_unhalted.one_thread_active 
/ cpu_clk_unhalted.ref_xclk ) ))) for Frontend_Bound_SMT
parsing metric: idq_uops_not_delivered.core / (4 * (( ( 
cpu_clk_unhalted.thread / 2 ) * ( 1 + cpu_clk_unhalted.one_thread_active 
/ cpu_clk_unhalted.ref_xclk ) )))
found event cpu_clk_unhalted.one_thread_active
found event cpu_clk_unhalted.ref_xclk
found event idq_uops_not_delivered.core
found event cpu_clk_unhalted.thread
adding 
{cpu_clk_unhalted.one_thread_active,cpu_clk_unhalted.ref_xclk,idq_uops_not_delivered.core,cpu_clk_unhalted.thread}:W
Attempting to add event pmu 'cpu_clk_unhalted.one_thread_active' with '' 
that may result in non-fatal errors
Attempting to add event pmu 'cpu_clk_unhalted.ref_xclk' with '' that may 
result in non-fatal errors
Attempting to add event pmu 'idq_uops_not_delivered.core' with '' that 
may result in non-fatal errors
Attempting to add event pmu 'cpu_clk_unhalted.thread' with '' that may 
result in non-fatal errors
parsing metric: idq_uops_not_delivered.core / (4 * (( ( 
cpu_clk_unhalted.thread / 2 ) * ( 1 + cpu_clk_unhalted.one_thread_active 
/ cpu_clk_unhalted.ref_xclk ) )))
lookup: is_ref 0, counted 46, val 300.000000: idq_uops_not_delivered.core
lookup: is_ref 0, counted 0, val 200.000000: cpu_clk_unhalted.thread
lookup: is_ref 0, counted 216, val 400.000000: 
cpu_clk_unhalted.one_thread_active
lookup: is_ref 0, counted 46, val 600.000000: cpu_clk_unhalted.ref_xclk
metric expr (dcache_miss_cpi + icache_miss_cycles) for cache_miss_cycles
parsing metric: (dcache_miss_cpi + icache_miss_cycles)
metric expr l1d\-loads\-misses / inst_retired.any for dcache_miss_cpi
parsing metric: l1d\-loads\-misses / inst_retired.any
metric expr l1i\-loads\-misses / inst_retired.any for icache_miss_cycles
parsing metric: l1i\-loads\-misses / inst_retired.any
found event inst_retired.any
found event l1i-loads-misses
found event l1d-loads-misses
adding {inst_retired.any,l1i-loads-misses,l1d-loads-misses}:W
Attempting to add event pmu 'inst_retired.any' with '' that may result 
in non-fatal errors
adding ref metric icache_miss_cycles: l1i\-loads\-misses / inst_retired.any
adding ref metric dcache_miss_cpi: l1d\-loads\-misses / inst_retired.any
parsing metric: (dcache_miss_cpi + icache_miss_cycles)
lookup: is_ref 1, counted 0, val 0.000000: dcache_miss_cpi
processing metric: dcache_miss_cpi ENTRY
parsing metric: l1d\-loads\-misses / inst_retired.any
lookup: is_ref 0, counted 105, val 300.000000: l1d-loads-misses
lookup: is_ref 0, counted 46, val 400.000000: inst_retired.any
processing metric: dcache_miss_cpi EXIT: 0.750000
lookup: is_ref 1, counted 0, val 0.000000: icache_miss_cycles
processing metric: icache_miss_cycles ENTRY
parsing metric: l1i\-loads\-misses / inst_retired.any
lookup: is_ref 0, counted 216, val 200.000000: l1i-loads-misses
lookup: is_ref 0, counted 46, val 400.000000: inst_retired.any
processing metric: icache_miss_cycles EXIT: 0.500000
metric expr d_ratio(dcache_l2_all_hits, dcache_l2_all) for DCache_L2_Hits
parsing metric: d_ratio(dcache_l2_all_hits, dcache_l2_all)
metric expr l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + 
l2_rqsts.rfo_hit for DCache_L2_All_Hits
parsing metric: l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + 
l2_rqsts.rfo_hit
metric expr dcache_l2_all_hits + dcache_l2_all_miss for DCache_L2_All
parsing metric: dcache_l2_all_hits + dcache_l2_all_miss
metric expr l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + 
l2_rqsts.rfo_hit for DCache_L2_All_Hits
parsing metric: l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + 
l2_rqsts.rfo_hit
metric expr max(l2_rqsts.all_demand_data_rd - 
l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss 
for DCache_L2_All_Miss
parsing metric: max(l2_rqsts.all_demand_data_rd - 
l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss
found event l2_rqsts.rfo_miss
found event l2_rqsts.pf_miss
found event l2_rqsts.rfo_hit
found event l2_rqsts.demand_data_rd_hit
found event l2_rqsts.all_demand_data_rd
found event l2_rqsts.pf_hit
adding 
{l2_rqsts.rfo_miss,l2_rqsts.pf_miss,l2_rqsts.rfo_hit,l2_rqsts.demand_data_rd_hit,l2_rqsts.all_demand_data_rd,l2_rqsts.pf_hit}:W
Attempting to add event pmu 'l2_rqsts.rfo_miss' with '' that may result 
in non-fatal errors
Attempting to add event pmu 'l2_rqsts.pf_miss' with '' that may result 
in non-fatal errors
Attempting to add event pmu 'l2_rqsts.rfo_hit' with '' that may result 
in non-fatal errors
Attempting to add event pmu 'l2_rqsts.demand_data_rd_hit' with '' that 
may result in non-fatal errors
Attempting to add event pmu 'l2_rqsts.all_demand_data_rd' with '' that 
may result in non-fatal errors
Attempting to add event pmu 'l2_rqsts.pf_hit' with '' that may result in 
non-fatal errors
adding ref metric DCache_L2_All_Miss: max(l2_rqsts.all_demand_data_rd - 
l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss
adding ref metric DCache_L2_All_Hits: l2_rqsts.demand_data_rd_hit + 
l2_rqsts.pf_hit + l2_rqsts.rfo_hit
adding ref metric DCache_L2_All: dcache_l2_all_hits + dcache_l2_all_miss
adding ref metric DCache_L2_All_Hits: l2_rqsts.demand_data_rd_hit + 
l2_rqsts.pf_hit + l2_rqsts.rfo_hit
parsing metric: d_ratio(dcache_l2_all_hits, dcache_l2_all)
lookup: is_ref 1, counted 0, val 0.000000: dcache_l2_all_hits
processing metric: dcache_l2_all_hits ENTRY
parsing metric: l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + 
l2_rqsts.rfo_hit
lookup: is_ref 0, counted 8, val 100.000000: l2_rqsts.demand_data_rd_hit
lookup: is_ref 0, counted 224, val 200.000000: l2_rqsts.pf_hit
lookup: is_ref 0, counted 46, val 300.000000: l2_rqsts.rfo_hit
processing metric: dcache_l2_all_hits EXIT: 600.000000
lookup: is_ref 1, counted 0, val 0.000000: dcache_l2_all
processing metric: dcache_l2_all ENTRY
parsing metric: dcache_l2_all_hits + dcache_l2_all_miss
lookup: is_ref 1, counted 1, val 600.000000: dcache_l2_all_hits
lookup: is_ref 1, counted 0, val 0.000000: dcache_l2_all_miss
processing metric: dcache_l2_all_miss ENTRY
parsing metric: max(l2_rqsts.all_demand_data_rd - 
l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss
lookup: is_ref 0, counted 112, val 400.000000: l2_rqsts.all_demand_data_rd
lookup: is_ref 0, counted 8, val 100.000000: l2_rqsts.demand_data_rd_hit
lookup: is_ref 0, counted 100, val 500.000000: l2_rqsts.pf_miss
lookup: is_ref 0, counted 120, val 600.000000: l2_rqsts.rfo_miss
processing metric: dcache_l2_all_miss EXIT: 1400.000000
processing metric: dcache_l2_all EXIT: 2000.000000
metric expr d_ratio(dcache_l2_all_miss, dcache_l2_all) for DCache_L2_Misses
parsing metric: d_ratio(dcache_l2_all_miss, dcache_l2_all)
metric expr max(l2_rqsts.all_demand_data_rd - 
l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss 
for DCache_L2_All_Miss
parsing metric: max(l2_rqsts.all_demand_data_rd - 
l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss
metric expr dcache_l2_all_hits + dcache_l2_all_miss for DCache_L2_All
parsing metric: dcache_l2_all_hits + dcache_l2_all_miss
metric expr l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + 
l2_rqsts.rfo_hit for DCache_L2_All_Hits
parsing metric: l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + 
l2_rqsts.rfo_hit
metric expr max(l2_rqsts.all_demand_data_rd - 
l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss 
for DCache_L2_All_Miss
parsing metric: max(l2_rqsts.all_demand_data_rd - 
l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss
found event l2_rqsts.rfo_miss
found event l2_rqsts.pf_miss
found event l2_rqsts.rfo_hit
found event l2_rqsts.demand_data_rd_hit
found event l2_rqsts.all_demand_data_rd
found event l2_rqsts.pf_hit
adding 
{l2_rqsts.rfo_miss,l2_rqsts.pf_miss,l2_rqsts.rfo_hit,l2_rqsts.demand_data_rd_hit,l2_rqsts.all_demand_data_rd,l2_rqsts.pf_hit}:W
Attempting to add event pmu 'l2_rqsts.rfo_miss' with '' that may result 
in non-fatal errors
Attempting to add event pmu 'l2_rqsts.pf_miss' with '' that may result 
in non-fatal errors
Attempting to add event pmu 'l2_rqsts.rfo_hit' with '' that may result 
in non-fatal errors
Attempting to add event pmu 'l2_rqsts.demand_data_rd_hit' with '' that 
may result in non-fatal errors
Attempting to add event pmu 'l2_rqsts.all_demand_data_rd' with '' that 
may result in non-fatal errors
Attempting to add event pmu 'l2_rqsts.pf_hit' with '' that may result in 
non-fatal errors
adding ref metric DCache_L2_All_Miss: max(l2_rqsts.all_demand_data_rd - 
l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss
adding ref metric DCache_L2_All_Hits: l2_rqsts.demand_data_rd_hit + 
l2_rqsts.pf_hit + l2_rqsts.rfo_hit
adding ref metric DCache_L2_All: dcache_l2_all_hits + dcache_l2_all_miss
adding ref metric DCache_L2_All_Miss: max(l2_rqsts.all_demand_data_rd - 
l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss
parsing metric: d_ratio(dcache_l2_all_miss, dcache_l2_all)
lookup: is_ref 1, counted 0, val 0.000000: dcache_l2_all_miss
processing metric: dcache_l2_all_miss ENTRY
parsing metric: max(l2_rqsts.all_demand_data_rd - 
l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss
lookup: is_ref 0, counted 128, val 400.000000: l2_rqsts.all_demand_data_rd
lookup: is_ref 0, counted 224, val 100.000000: l2_rqsts.demand_data_rd_hit
lookup: is_ref 0, counted 112, val 500.000000: l2_rqsts.pf_miss
lookup: is_ref 0, counted 0, val 600.000000: l2_rqsts.rfo_miss
processing metric: dcache_l2_all_miss EXIT: 1400.000000
lookup: is_ref 1, counted 0, val 0.000000: dcache_l2_all
processing metric: dcache_l2_all ENTRY
parsing metric: dcache_l2_all_hits + dcache_l2_all_miss
lookup: is_ref 1, counted 0, val 0.000000: dcache_l2_all_hits
processing metric: dcache_l2_all_hits ENTRY
parsing metric: l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + 
l2_rqsts.rfo_hit
lookup: is_ref 0, counted 224, val 100.000000: l2_rqsts.demand_data_rd_hit
lookup: is_ref 0, counted 0, val 200.000000: l2_rqsts.pf_hit
lookup: is_ref 0, counted 152, val 300.000000: l2_rqsts.rfo_hit
processing metric: dcache_l2_all_hits EXIT: 600.000000
lookup: is_ref 1, counted 1, val 1400.000000: dcache_l2_all_miss
processing metric: dcache_l2_all EXIT: 2000.000000
metric expr ipc + m2 for M1
parsing metric: ipc + m2
metric expr ipc + m1 for M2
parsing metric: ipc + m1
metric expr ipc + m2 for M1
parsing metric: ipc + m2
failed: recursion detected for m2
metric expr 1/m3 for M3
parsing metric: 1/m3
metric expr 1/m3 for M3
parsing metric: 1/m3
failed: recursion detected for m3
metric expr inst_retired.any / cpu_clk_unhalted.thread for IPC
parsing metric: inst_retired.any / cpu_clk_unhalted.thread
metric expr (dcache_miss_cpi + icache_miss_cycles) for cache_miss_cycles
parsing metric: (dcache_miss_cpi + icache_miss_cycles)
metric expr l1d\-loads\-misses / inst_retired.any for dcache_miss_cpi
parsing metric: l1d\-loads\-misses / inst_retired.any
metric expr l1i\-loads\-misses / inst_retired.any for icache_miss_cycles
parsing metric: l1i\-loads\-misses / inst_retired.any
found event inst_retired.any
found event cpu_clk_unhalted.thread
found event inst_retired.any
found event l1i-loads-misses
found event l1d-loads-misses
adding 
{inst_retired.any,cpu_clk_unhalted.thread}:W,{inst_retired.any,l1i-loads-misses,l1d-loads-misses}:W
Attempting to add event pmu 'inst_retired.any' with '' that may result 
in non-fatal errors
Attempting to add event pmu 'cpu_clk_unhalted.thread' with '' that may 
result in non-fatal errors
Attempting to add event pmu 'inst_retired.any' with '' that may result 
in non-fatal errors
parsing metric: inst_retired.any / cpu_clk_unhalted.thread
lookup: is_ref 0, counted 64, val 800.000000: inst_retired.any
lookup: is_ref 0, counted 32, val 200.000000: cpu_clk_unhalted.thread
adding ref metric icache_miss_cycles: l1i\-loads\-misses / inst_retired.any
adding ref metric dcache_miss_cpi: l1d\-loads\-misses / inst_retired.any
parsing metric: (dcache_miss_cpi + icache_miss_cycles)
lookup: is_ref 1, counted 0, val 0.000000: dcache_miss_cpi
processing metric: dcache_miss_cpi ENTRY
parsing metric: l1d\-loads\-misses / inst_retired.any
lookup: is_ref 0, counted 0, val 300.000000: l1d-loads-misses
lookup: is_ref 0, counted 64, val 800.000000: inst_retired.any
processing metric: dcache_miss_cpi EXIT: 0.375000
lookup: is_ref 1, counted 0, val 0.000000: icache_miss_cycles
processing metric: icache_miss_cycles ENTRY
parsing metric: l1i\-loads\-misses / inst_retired.any
lookup: is_ref 0, counted 32, val 200.000000: l1i-loads-misses
lookup: is_ref 0, counted 64, val 800.000000: inst_retired.any
processing metric: icache_miss_cycles EXIT: 0.250000
FAILED tests/parse-metric.c:343 group IPC failed, wrong ratio
FAILED tests/parse-metric.c:357 test metric group
test child finished with -1
---- end ----
Parse and process metrics: FAILED!
john at localhost:~/kernel-dev7/tools/perf>


> 
>> I will have a look, but I was hoping that Ian would have a proper fix
>> for this on top of ("perf metricgroup: Fix uncore metric expressions"),
>> which now looks to be merged.
> I still have these changes to look at in my inbox but I'm assuming
> they're good:-) 

really? I wouldn't assume my hacky patch is good :)

> Sorry for not getting to them, but it's good they are
> merged.

cheers

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