learnedsystems / SOSD

A Benchmark for Learned Indexes

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execute_perf.sh: "Error opening counter cycles"

alihadian opened this issue · comments

The execute_perf.sh benchmark does not run (Ubuntu 18.04, followed all README instructions).

Is there any extra package/tool that needs to be installed?

Here is the output:

SOSD$ scripts/execute_perf.sh 
Executing perf benchmark and saving results...
Executing workload normal_200M_uint32
Repeating lookup code 1 time(s).
read 200000000 values from ./data/normal_200M_uint32 in 1974 ms (101.317 M values/s)
data is unique
read 1000000 values from ./data/normal_200M_uint32_equality_lookups_1M in 37 ms (27.027 M values/s)
Error opening counter cycles
 index, time sec, 
RESULT: Oracle,     0.00, 
Error opening counter cycles
RESULT:   rmi,     0.07, 
Error opening counter cycles
RESULT: RadixSpline,     0.06, 
Error opening counter cycles
RESULT: BinarySearch,     0.81, 
Error opening counter cycles
RESULT: InterpolationSearch,    10.93, 
Error opening counter cycles
RESULT: RadixBinarySearch18,     0.33, 
Error opening counter cycles
RESULT:  FAST,     0.30, 
Error opening counter cycles
RESULT:   ART,     0.24, 
Error opening counter cycles
RESULT:   TIP,     0.97, 
Error opening counter cycles
RESULT: stx::btree_multimap,     0.48,

Yes, a local machine with Ubuntu 18. Everything works fine except execute_perf.sh.

I suspect there is another package/tool/config required by the perf benchmark that is NOT in setup_anywhere.sh ??

Hi Ali,

Sorry for the trouble!

I believe the Ubuntu package you need it linux-tools-common. Not sure if that's in the setup script or not.

The default configuration on some distributions restricts perf counter access to superusers. Can you try running the script with sudo?

If none of that works, try just running perf record build/benchmark build/lognormal_200M_uint64 data/lognormal_200M_uint64_equality_lookups_10M to see why perf isn't running on your machine.

Thanks,

Ryan

Thanks guys! It works with sudo