view testdata/timing/results.txt @ 107:16d6e2f6f159 bqvec-openmp

Report on latest

Thinkpad T540p i5-4330M @2.80GHz with 16GB RAM, plugged in
Arch Linux, gcc 4.8.2
Using sonic-annotator v1.0 (commit:41c4de1e05d8), release build

Debug flags: -g -fPIC
Release flags: -O3 -ffast-math -msse -mfpmath=sse -ftree-vectorize -fPIC

Release flags for qm-dsp also include -fomit-frame-pointer

The input file is 1-channel 16-bit PCM at 44100Hz, duration 0m43.5s.


DEBUG/RELEASE:

commit:ce64d11ef336, release build of Silvet, release build of qm-dsp

real	1m44.456s
user	1m44.343s
sys	0m0.210s

commit:ce64d11ef336, debug build of Silvet, release build of qm-dsp

real	14m16.124s
user	14m16.907s
sys	0m0.217s

commit:ce64d11ef336, release build of Silvet, debug build of qm-dsp

real	1m55.204s
user	1m55.053s
sys	0m0.253s

Subsequent tests use release builds of both.


VAMP FEATURE SUPPRESSION:

commit:7133f78ccbf6, as commit:ce64d11ef336 but with CQ output feature
return commented out

real	1m46.162s
user	1m46.093s
sys	0m0.157s

commit:78a7bf247016, as commit:ce64d11ef336 but with CQ output and FCQ
output feature return commented out

real	1m45.206s
user	1m45.153s
sys	0m0.147s

conclusion: no advantage in removing these


DEBUG PRINTOUTS:

commit:f3bf6503e6c6, as commit:ce64d11ef336 but with debug printouts
removed

real	1m43.744s
user	1m43.657s
sys	0m0.203s

conclusion: obviously we want to remove these eventually, but might as
well keep in during testing


EM ITERATIONS:

commit:5314d3361dfb, as commit:ce64d11ef336 but with only 6 EM
iterations instead of 12

real	0m59.055s
user	0m58.897s
sys	0m0.193s

conclusion: EM dominates the time taken, not CQ or note forming


CQ DECIMATOR CONFIGURATION:

Uncommitted revision (because changes are in CQ subrepo) that is as
commit:ce64d11ef336 but with resampler SNR=30 and BW=0.04 instead of
SNR=60 and BW=0.02

real	1m43.176s
user	1m43.067s
sys	0m0.190s

conclusion: supports the previous test


OPENMP:

commit:62b7be1226d5, as commit:ce64d11ef336 but with OpenMP parallel
"for" in the main EM iteration loop (4 cores)

real	0m56.400s
user	2m59.740s
sys	0m0.237s


EM TWEAKS:

commit:a0dedcbfa628, as commit:ce64d11ef336 but with variables hoisted
out of loops and consts added wherever applicable

real	1m44.548s
user	1m44.460s
sys	0m0.183s

conclusion: compiler already knows this stuff

commit:64b08cc12da0, as commit:ce64d11ef336 but with loops merged so
as theoretically to reduce intermediate calculations

real	3m46.969s
user	3m46.850s
sys	0m0.220s

commit:6075e92d63ab, as commit:64b08cc12da0 but with innermost loop
reverted to three loops with simple bodies instead of one with a more
complex body

real	1m44.767s
user	1m44.490s
sys	0m0.190s

commit:97b77e7cb94c, as commit:6075e92d63ab but with templates stored
as doubles instead of floats (doubling the size of the plugin binary)

real	1m40.135s
user	1m39.820s
sys	0m0.230s

commit:a6e136aaa202, as commit:97b77e7cb94c but with target vectors &
grids initialised to epsilon instead of copied & then overwritten
(this one also makes the intention clearer I think so is worth doing)

real	1m39.277s
user	1m39.000s
sys	0m0.183s


BQVEC:

commit:81eaba98985b, as commit:a6e136aaa202 but converted to use bqvec
for basic allocation etc; processing logic unchanged

real	1m37.320s
user	1m36.863s
sys	0m0.240s

commit:891cbcf1e4d2, as commit:81eaba98985b but with some calculations
vectorised [note: has silly bug]

real	1m24.961s
user	1m24.663s
sys	0m0.177s

commit:853b2d750688, as commit:891cbcf1e4d2 but with silly bug fixed

real	1m26.876s
user	1m26.387s
sys	0m0.267s

commit:9ecad4c9c2a2, as commit:853b2d750688 but using a couple of
bqvec calls in expectation function

real	1m9.153s
user	1m8.837s
sys	0m0.187s

(this seems unlikely -- what have I broken?)

commit:8259193b3b16, as commit:9ecad4c9c2a2 but avoiding some
allocations

real	1m10.631s
user	1m10.327s
sys	0m0.180s

(still broken?)

commit:19f6832fdc8a, as commit:9ecad4c9c2a2 but with the arguments to
v_add_with_gain supplied in the right order (that's what I'd broken!)

real	1m28.957s
user	1m28.437s
sys	0m0.213s


BQVEC and OPENMP

commit:ac750e222ad3, result of merging openmp branch
commit:62b7be1226d into bqvec branch commit:19f6832fdc8a

real	0m44.650s
user	2m19.997s
sys	0m0.343s