[Haskell-cafe] [13/16] SBM: Graphs that show the infidelity of -sstderr

Peter Firefly Brodersen Lund firefly at vax64.dk
Sat Dec 22 04:17:24 EST 2007


Everybody seems to use +RTS -sstderr to measure the memory performance of their
Haskell (ghc) code.  That's what I started out doing, too.

However, top seemed to occasionally disagree with the run-time system.

I decided to dig deeper and ask the operating system at process exit time.

I use LD_PRELOAD to get my code injected into each benchmarked process where
it gets activated when the process is about to exit and copies /proc/self/maps
and /proc/self/status to stderr where the test harness captures them.

Unfortunately, -sstderr really *IS* unreliable!

tools/regensstderr.sh and tools/sstderr.pl are two scripts that together
generate bar graphs for an existing measurement tarball.  I used the following
shell code to generate graphs for 7 different ghc/bytestring combinations:

(for F in ghc-thorough-6.6.1.tgz \
          ghc-thorough-6.8.2.tgz ghc-thorough-6.8.2-bs0902.tgz \
          ghc-thorough-6.9.tgz   ghc-thorough-6.9-bs0902.tgz   \
          ghc-thorough-head.tgz  ghc-thorough-head-bs0902.tgz; \
        do   \
          printf "%s\n-------\n" $F; \
          tools/regensstderr.sh $F;  \
          printf "\n\n"; \
        done \
) > xx

The graphs clearly show that -sstderr sometimes severely underestimates the
memory use and sometimes somewhat overestimates it.  Moreover, the errors are
not always for the same programs.

This holds for all ghc versions I've tested: 6.6.1, 6.8.2, 6.9.20071119, and
head as of noon 2007-12-19.

-Peter

ghc-thorough-6.6.1.tgz
-------
hs/byte-bs----acc:         1 147448 ▏                    |██████████████████▎  |
hs/byte-bs----foldlx:    145 147468 ██████████▎          |██████████████████▎  |
hs/byte-bs----foldrx:      1 147452 ▏                    |██████████████████▎  |
hs/byte-bsl---acc:         2   2872 ▏                    |▍                    |
hs/byte-xxxxx-acc-1:       1   1572 ▏                    |▎                    |
hs/byte-xxxxx-acc-2:       1   1568 ▏                    |▎                    |
hs/byte-xxxxx-foldl:       1   1572 ▏                    |▎                    |
hs/space-bs-c8-acc-1:      1 147448 ▏                    |██████████████████▎  |
hs/space-bs-c8-count:      1 147448 ▏                    |██████████████████▎  |
hs/space-bs-c8-foldlx-1: 145 147468 ██████████▎          |██████████████████▎  |
hs/space-bs-c8-foldlx-2: 145 147468 ██████████▎          |██████████████████▎  |
hs/space-bs-c8-foldrx:     1 147448 ▏                    |██████████████████▎  |
hs/space-bs-c8-lenfil:   145 147464 ██████████▎          |██████████████████▎  |
hs/space-bslc8-acc-1:      2   2872 ▏                    |▍                    |
hs/space-bslc8-acc-2:      2   2872 ▏                    |▍                    |
hs/space-bslc8-acc-3:      2   2868 ▏                    |▍                    |
hs/space-bslc8-count:      2   1476 ▏                    |▏                    |
hs/space-bslc8-foldl:      2   1552 ▏                    |▎                    |
hs/space-bslc8-foldlx-1:   2   1556 ▏                    |▎                    |
hs/space-bslc8-foldlx-2:   2   1552 ▏                    |▎                    |
hs/space-bslc8-foldr-1:  297 169480 █████████████████████|█████████████████████|
hs/space-bslc8-foldr-2:  297 169480 █████████████████████|█████████████████████|
hs/space-bslc8-lenfil-1:  38  38632 ██▋                  |████▊                |
hs/space-bslc8-lenfil-2:  38  38628 ██▋                  |████▊                |
hs/space-bsl---foldlx:     2   1560 ▏                    |▎                    |
hs/space-xxxxx-acc-1:      1   1568 ▏                    |▎                    |
hs/space-xxxxx-acc-2:      1   1572 ▏                    |▎                    |
hs/space-xxxxx-foldl:      1   1572 ▏                    |▎                    |
hs/space-xxxxx-lenfil:     1   1556 ▏                    |▎                    |
c/byte-getchar:            -      - 
c/byte-getchar-u:          -      - 
c/byte-4k:                 -      - 
c/space-getchar:           -      - 
c/space-getchar-u:         -      - 
c/space-4k:                -      - 
c/space-megabuf:           -      - 
c/space-getwchar:          -      - 
c/space-getwchar-u:        -      - 
c/space-32k:               -      - 
c/space-32k-8:             -      - 


ghc-thorough-6.8.2.tgz
-------
hs/byte-bs----acc:         1 147500 ▏                    |██████████████████▎  |
hs/byte-bs----foldlx:    145 147528 ██████████▎          |██████████████████▎  |
hs/byte-bs----foldrx:      1 147500 ▏                    |██████████████████▎  |
hs/byte-bsl---acc:         2   2920 ▏                    |▍                    |
hs/byte-xxxxx-acc-1:       1   1632 ▏                    |▎                    |
hs/byte-xxxxx-acc-2:       1   1636 ▏                    |▎                    |
hs/byte-xxxxx-foldl:       1   1632 ▏                    |▎                    |
hs/space-bs-c8-acc-1:      1 147492 ▏                    |██████████████████▎  |
hs/space-bs-c8-count:      1 147500 ▏                    |██████████████████▎  |
hs/space-bs-c8-foldlx-1: 145 147524 ██████████▎          |██████████████████▎  |
hs/space-bs-c8-foldlx-2: 145 147520 ██████████▎          |██████████████████▎  |
hs/space-bs-c8-foldrx:     1 147496 ▏                    |██████████████████▎  |
hs/space-bs-c8-lenfil:   145 147524 ██████████▎          |██████████████████▎  |
hs/space-bslc8-acc-1:      2   2920 ▏                    |▍                    |
hs/space-bslc8-acc-2:      2   2924 ▏                    |▍                    |
hs/space-bslc8-acc-3:      2   2924 ▏                    |▍                    |
hs/space-bslc8-chunk-1:    2   1512 ▏                    |▏                    |
hs/space-bslc8-chunk-2:    2   1512 ▏                    |▏                    |
hs/space-bslc8-chunk-3:    2   1548 ▏                    |▎                    |
hs/space-bslc8-chunk-4:    2   1512 ▏                    |▏                    |
hs/space-bslc8-count:      2   1520 ▏                    |▎                    |
hs/space-bslc8-foldl:      2   1620 ▏                    |▎                    |
hs/space-bslc8-foldlx-1:   2   1620 ▏                    |▎                    |
hs/space-bslc8-foldlx-2:   2   1616 ▏                    |▎                    |
hs/space-bslc8-foldr-1:  297 169544 █████████████████████|█████████████████████|
hs/space-bslc8-foldr-2:  297 169544 █████████████████████|█████████████████████|
hs/space-bslc8-lenfil-1:  38  38644 ██▋                  |████▊                |
hs/space-bslc8-lenfil-2:  38  38648 ██▋                  |████▊                |
hs/space-bsl---foldlx:     2   1616 ▏                    |▎                    |
hs/space-xxxxx-acc-1:      1   1636 ▏                    |▎                    |
hs/space-xxxxx-acc-2:      1   1636 ▏                    |▎                    |
hs/space-xxxxx-foldl:      1   1636 ▏                    |▎                    |
hs/space-xxxxx-lenfil:     1   1608 ▏                    |▎                    |
c/byte-getchar:            -      - 
c/byte-getchar-u:          -      - 
c/byte-4k:                 -      - 
c/space-getchar:           -      - 
c/space-getchar-u:         -      - 
c/space-4k:                -      - 
c/space-megabuf:           -      - 
c/space-getwchar:          -      - 
c/space-getwchar-u:        -      - 
c/space-32k:               -      - 
c/space-32k-8:             -      - 


ghc-thorough-6.8.2-bs0902.tgz
-------
hs/byte-bs----acc:         1 147616 ▏                    |██████████████████▌  |
hs/byte-bs----foldlx:      1 147624 ▏                    |██████████████████▌  |
hs/byte-bs----foldrx:      1 147624 ▏                    |██████████████████▌  |
hs/byte-bsl---acc:         2   3040 ▎                    |▍                    |
hs/byte-xxxxx-acc-1:       1   1636 ▏                    |▎                    |
hs/byte-xxxxx-acc-2:       1   1636 ▏                    |▎                    |
hs/byte-xxxxx-foldl:       1   1636 ▏                    |▎                    |
hs/space-bs-c8-acc-1:      1 147608 ▏                    |██████████████████▌  |
hs/space-bs-c8-count:      1 147612 ▏                    |██████████████████▌  |
hs/space-bs-c8-foldlx-1:   1 147608 ▏                    |██████████████████▌  |
hs/space-bs-c8-foldlx-2:   1 147608 ▏                    |██████████████████▌  |
hs/space-bs-c8-foldrx:     1 147608 ▏                    |██████████████████▌  |
hs/space-bs-c8-lenfil:    21 167176 ███                  |█████████████████████|
hs/space-bslc8-acc-1:      2   3048 ▎                    |▍                    |
hs/space-bslc8-acc-2:      2   3048 ▎                    |▍                    |
hs/space-bslc8-acc-3:      2   3052 ▎                    |▍                    |
hs/space-bslc8-chunk-1:    2   1636 â–Ž                    |â–Ž                    |
hs/space-bslc8-chunk-2:    2   1640 â–Ž                    |â–Ž                    |
hs/space-bslc8-chunk-3:    2   1644 â–Ž                    |â–Ž                    |
hs/space-bslc8-chunk-4:    2   1636 â–Ž                    |â–Ž                    |
hs/space-bslc8-count:      2   1656 â–Ž                    |â–Ž                    |
hs/space-bslc8-foldl:      2   1632 â–Ž                    |â–Ž                    |
hs/space-bslc8-foldlx-1:   2   1636 â–Ž                    |â–Ž                    |
hs/space-bslc8-foldlx-2:   2   1636 â–Ž                    |â–Ž                    |
hs/space-bslc8-foldr-1:  149 149076 █████████████████████|██████████████████▊  |
hs/space-bslc8-foldr-2:  149 149076 █████████████████████|██████████████████▊  |
hs/space-bslc8-lenfil-1:   2   1940 â–Ž                    |â–Ž                    |
hs/space-bslc8-lenfil-2:   2   1940 â–Ž                    |â–Ž                    |
hs/space-bsl---foldlx:     2   1620 â–Ž                    |â–Ž                    |
hs/space-xxxxx-acc-1:      1   1636 ▏                    |▎                    |
hs/space-xxxxx-acc-2:      1   1636 ▏                    |▎                    |
hs/space-xxxxx-foldl:      1   1636 ▏                    |▎                    |
hs/space-xxxxx-lenfil:     1   1604 ▏                    |▎                    |
c/byte-getchar:            -      - 
c/byte-getchar-u:          -      - 
c/byte-4k:                 -      - 
c/space-getchar:           -      - 
c/space-getchar-u:         -      - 
c/space-4k:                -      - 
c/space-megabuf:           -      - 
c/space-getwchar:          -      - 
c/space-getwchar-u:        -      - 
c/space-32k:               -      - 
c/space-32k-8:             -      - 


ghc-thorough-6.9.tgz
-------
hs/byte-bs----acc:          1 147752 ▏                   |█████████████████▍  |
hs/byte-bs----foldlx:     145 147748 █████████▊          |█████████████████▍  |
hs/byte-bs----foldrx:       1 147744 ▏                   |█████████████████▍  |
hs/byte-bsl---acc:          2   3172 ▏                   |▍                   |
hs/byte-xxxxx-acc-1:        1   1904 ▏                   |▎                   |
hs/byte-xxxxx-acc-2:        1   1904 ▏                   |▎                   |
hs/byte-xxxxx-foldl:        1   1900 ▏                   |▎                   |
hs/space-bs-c8-acc-1:       1 147736 ▏                   |█████████████████▍  |
hs/space-bs-c8-count:       1 147744 ▏                   |█████████████████▍  |
hs/space-bs-c8-foldlx-1:  145 147756 █████████▊          |█████████████████▍  |
hs/space-bs-c8-foldlx-2:  145 147752 █████████▊          |█████████████████▍  |
hs/space-bs-c8-foldrx:      1 147732 ▏                   |█████████████████▍  |
hs/space-bs-c8-lenfil:    145 147756 █████████▊          |█████████████████▍  |
hs/space-bslc8-acc-1:       2   3192 ▏                   |▍                   |
hs/space-bslc8-acc-2:       2   3192 ▏                   |▍                   |
hs/space-bslc8-acc-3:       2   3196 ▏                   |▍                   |
hs/space-bslc8-chunk-1:    64  65192 ████▎               |███████▋            |
hs/space-bslc8-chunk-2:    64  65192 ████▎               |███████▋            |
hs/space-bslc8-chunk-3:    74  75240 █████               |████████▉           |
hs/space-bslc8-chunk-4:    75  76188 █████               |█████████           |
hs/space-bslc8-count:      78  79204 █████▎              |█████████▍          |
hs/space-bslc8-foldl:      85  85868 █████▊              |██████████▏         |
hs/space-bslc8-foldlx-1:   85  85864 █████▊              |██████████▏         |
hs/space-bslc8-foldlx-2:   85  85868 █████▊              |██████████▏         |
hs/space-bslc8-foldr-1:   297 169700 ████████████████████|████████████████████|
hs/space-bslc8-foldr-2:   297 169700 ████████████████████|████████████████████|
hs/space-bslc8-lenfil-1:  115 109404 ███████▊            |████████████▉       |
hs/space-bslc8-lenfil-2:  115 109404 ███████▊            |████████████▉       |
hs/space-bsl---foldlx:     85  85836 █████▊              |██████████▏         |
hs/space-xxxxx-acc-1:       1   1904 ▏                   |▎                   |
hs/space-xxxxx-acc-2:       1   1904 ▏                   |▎                   |
hs/space-xxxxx-foldl:       1   1900 ▏                   |▎                   |
hs/space-xxxxx-lenfil:      1   1892 ▏                   |▎                   |
hand/byte-bs----acc-a:      1 147764 ▏                   |█████████████████▍  |
hand/byte-bs----acc-b:      1 147764 ▏                   |█████████████████▍  |
hand/byte-bs----acc-c:      1 147760 ▏                   |█████████████████▍  |
hand/byte-bs----acc-d:      1 147760 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-a:   1 147752 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-b:   1 147752 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-c:   1 147752 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-d:   1 147756 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-e:   1 147752 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-f:   1 147748 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-g:   1 147752 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-h:   1 147748 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-i:   1 147748 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-j:   1 147748 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-k:   1 147752 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-l:   1 147752 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-m:   1 147748 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-n:   1 147752 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-o:   1 147752 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-p:   1 147752 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-q:   1 147748 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-r:   1 147748 ▏                   |█████████████████▍  |
hand/space-bs-c8-acc-1-s:   1 147744 ▏                   |█████████████████▍  |
c/byte-getchar:             -      - 
c/byte-getchar-u:           -      - 
c/byte-4k:                  -      - 
c/space-getchar:            -      - 
c/space-getchar-u:          -      - 
c/space-4k:                 -      - 
c/space-megabuf:            -      - 
c/space-getwchar:           -      - 
c/space-getwchar-u:         -      - 
c/space-32k:                -      - 
c/space-32k-8:              -      - 


ghc-thorough-6.9-bs0902.tgz
-------
hs/byte-bs----acc:         1 147732 ▏                    |██████████████████▌  |
hs/byte-bs----foldlx:      1 147736 ▏                    |██████████████████▌  |
hs/byte-bs----foldrx:      1 147740 ▏                    |██████████████████▌  |
hs/byte-bsl---acc:         2   3184 ▎                    |▍                    |
hs/byte-xxxxx-acc-1:       1   1904 ▏                    |▎                    |
hs/byte-xxxxx-acc-2:       1   1900 ▏                    |▎                    |
hs/byte-xxxxx-foldl:       1   1904 ▏                    |▎                    |
hs/space-bs-c8-acc-1:      1 147740 ▏                    |██████████████████▌  |
hs/space-bs-c8-count:      1 147756 ▏                    |██████████████████▌  |
hs/space-bs-c8-foldlx-1:   1 147744 ▏                    |██████████████████▌  |
hs/space-bs-c8-foldlx-2:   1 147748 ▏                    |██████████████████▌  |
hs/space-bs-c8-foldrx:     1 147748 ▏                    |██████████████████▌  |
hs/space-bs-c8-lenfil:    21 167300 ███                  |█████████████████████|
hs/space-bslc8-acc-1:      2   3228 ▎                    |▍                    |
hs/space-bslc8-acc-2:      2   3228 ▎                    |▍                    |
hs/space-bslc8-acc-3:      2   3232 ▎                    |▍                    |
hs/space-bslc8-chunk-1:   65  66216 █████████▏           |████████▎            |
hs/space-bslc8-chunk-2:   65  66216 █████████▏           |████████▎            |
hs/space-bslc8-chunk-3:   65  66208 █████████▏           |████████▎            |
hs/space-bslc8-chunk-4:   78  79232 ███████████          |██████████           |
hs/space-bslc8-count:     81  82248 ███████████▍         |██████████▍          |
hs/space-bslc8-foldl:     78  79224 ███████████          |██████████           |
hs/space-bslc8-foldlx-1:  78  79224 ███████████          |██████████           |
hs/space-bslc8-foldlx-2:  78  79224 ███████████          |██████████           |
hs/space-bslc8-foldr-1:  149 149704 █████████████████████|██████████████████▊  |
hs/space-bslc8-foldr-2:  149 149708 █████████████████████|██████████████████▊  |
hs/space-bslc8-lenfil-1:  81  82324 ███████████▍         |██████████▍          |
hs/space-bslc8-lenfil-2:  81  82328 ███████████▍         |██████████▍          |
hs/space-bsl---foldlx:    78  79184 ███████████          |██████████           |
hs/space-xxxxx-acc-1:      1   1904 ▏                    |▎                    |
hs/space-xxxxx-acc-2:      1   1900 ▏                    |▎                    |
hs/space-xxxxx-foldl:      1   1904 ▏                    |▎                    |
hs/space-xxxxx-lenfil:     1   1892 ▏                    |▎                    |
c/byte-getchar:            -      - 
c/byte-getchar-u:          -      - 
c/byte-4k:                 -      - 
c/space-getchar:           -      - 
c/space-getchar-u:         -      - 
c/space-4k:                -      - 
c/space-megabuf:           -      - 
c/space-getwchar:          -      - 
c/space-getwchar-u:        -      - 
c/space-32k:               -      - 
c/space-32k-8:             -      - 


ghc-thorough-head.tgz
-------
hs/byte-bs----acc:         1 147772 ▏                    |██████████████████▎  |
hs/byte-bs----foldlx:    145 147796 ██████████▎          |██████████████████▎  |
hs/byte-bs----foldrx:      1 147772 ▏                    |██████████████████▎  |
hs/byte-bsl---acc:         2   3212 ▏                    |▍                    |
hs/byte-xxxxx-acc-1:       1   1900 ▏                    |▎                    |
hs/byte-xxxxx-acc-2:       1   1900 ▏                    |▎                    |
hs/byte-xxxxx-foldl:       1   1900 ▏                    |▎                    |
hs/space-bs-c8-acc-1:      1 147752 ▏                    |██████████████████▎  |
hs/space-bs-c8-count:      1 147764 ▏                    |██████████████████▎  |
hs/space-bs-c8-foldlx-1: 145 147796 ██████████▎          |██████████████████▎  |
hs/space-bs-c8-foldlx-2: 145 147796 ██████████▎          |██████████████████▎  |
hs/space-bs-c8-foldrx:     1 147760 ▏                    |██████████████████▎  |
hs/space-bs-c8-lenfil:   145 147788 ██████████▎          |██████████████████▎  |
hs/space-bslc8-acc-1:      2   3180 ▏                    |▍                    |
hs/space-bslc8-acc-2:      2   3180 ▏                    |▍                    |
hs/space-bslc8-acc-3:      2   3172 ▏                    |▍                    |
hs/space-bslc8-chunk-1:   64  65204 ████▌                |████████▏            |
hs/space-bslc8-chunk-2:   64  65204 ████▌                |████████▏            |
hs/space-bslc8-chunk-3:   74  75216 █████▎               |█████████▎           |
hs/space-bslc8-chunk-4:   75  76176 █████▎               |█████████▍           |
hs/space-bslc8-count:     78  79220 █████▌               |█████████▊           |
hs/space-bslc8-foldl:     85  85852 ██████               |██████████▋          |
hs/space-bslc8-foldlx-1:  85  85852 ██████               |██████████▋          |
hs/space-bslc8-foldlx-2:  85  85852 ██████               |██████████▋          |
hs/space-bslc8-foldr-1:  297 169680 █████████████████████|█████████████████████|
hs/space-bslc8-foldr-2:  297 169676 █████████████████████|█████████████████████|
hs/space-bslc8-lenfil-1: 115 109388 ████████▏            |█████████████▌       |
hs/space-bslc8-lenfil-2: 115 109392 ████████▏            |█████████████▌       |
hs/space-bsl---foldlx:    85  85864 ██████               |██████████▋          |
hs/space-xxxxx-acc-1:      1   1900 ▏                    |▎                    |
hs/space-xxxxx-acc-2:      1   1904 ▏                    |▎                    |
hs/space-xxxxx-foldl:      1   1904 ▏                    |▎                    |
hs/space-xxxxx-lenfil:     1   1888 ▏                    |▎                    |
c/byte-getchar:            -      - 
c/byte-getchar-u:          -      - 
c/byte-4k:                 -      - 
c/space-getchar:           -      - 
c/space-getchar-u:         -      - 
c/space-4k:                -      - 
c/space-megabuf:           -      - 
c/space-getwchar:          -      - 
c/space-getwchar-u:        -      - 
c/space-32k:               -      - 
c/space-32k-8:             -      - 


ghc-thorough-head-bs0902.tgz
-------
hs/byte-bs----acc:         1 147780 ▏                    |██████████████████▌  |
hs/byte-bs----foldlx:      1 147780 ▏                    |██████████████████▌  |
hs/byte-bs----foldrx:      1 147784 ▏                    |██████████████████▌  |
hs/byte-bsl---acc:         2   3216 ▎                    |▍                    |
hs/byte-xxxxx-acc-1:       1   1900 ▏                    |▎                    |
hs/byte-xxxxx-acc-2:       1   1896 ▏                    |▎                    |
hs/byte-xxxxx-foldl:       1   1896 ▏                    |▎                    |
hs/space-bs-c8-acc-1:      1 147752 ▏                    |██████████████████▌  |
hs/space-bs-c8-count:      1 147776 ▏                    |██████████████████▌  |
hs/space-bs-c8-foldlx-1:   1 147752 ▏                    |██████████████████▌  |
hs/space-bs-c8-foldlx-2:   1 147756 ▏                    |██████████████████▌  |
hs/space-bs-c8-foldrx:     1 147756 ▏                    |██████████████████▌  |
hs/space-bs-c8-lenfil:    21 167320 ███                  |█████████████████████|
hs/space-bslc8-acc-1:      2   3196 ▎                    |▍                    |
hs/space-bslc8-acc-2:      2   3200 ▎                    |▍                    |
hs/space-bslc8-acc-3:      2   3208 ▎                    |▍                    |
hs/space-bslc8-chunk-1:   65  66224 █████████▏           |████████▎            |
hs/space-bslc8-chunk-2:   65  66228 █████████▏           |████████▎            |
hs/space-bslc8-chunk-3:   65  66224 █████████▏           |████████▎            |
hs/space-bslc8-chunk-4:   78  79204 ███████████          |██████████           |
hs/space-bslc8-count:     81  82224 ███████████▍         |██████████▍          |
hs/space-bslc8-foldl:     78  79196 ███████████          |██████████           |
hs/space-bslc8-foldlx-1:  78  79196 ███████████          |██████████           |
hs/space-bslc8-foldlx-2:  78  79196 ███████████          |██████████           |
hs/space-bslc8-foldr-1:  149 149680 █████████████████████|██████████████████▊  |
hs/space-bslc8-foldr-2:  149 149676 █████████████████████|██████████████████▊  |
hs/space-bslc8-lenfil-1:  81  82304 ███████████▍         |██████████▍          |
hs/space-bslc8-lenfil-2:  81  82300 ███████████▍         |██████████▍          |
hs/space-bsl---foldlx:    78  79208 ███████████          |██████████           |
hs/space-xxxxx-acc-1:      1   1904 ▏                    |▎                    |
hs/space-xxxxx-acc-2:      1   1900 ▏                    |▎                    |
hs/space-xxxxx-foldl:      1   1904 ▏                    |▎                    |
hs/space-xxxxx-lenfil:     1   1888 ▏                    |▎                    |
c/byte-getchar:            -      - 
c/byte-getchar-u:          -      - 
c/byte-4k:                 -      - 
c/space-getchar:           -      - 
c/space-getchar-u:         -      - 
c/space-4k:                -      - 
c/space-megabuf:           -      - 
c/space-getwchar:          -      - 
c/space-getwchar-u:        -      - 
c/space-32k:               -      - 
c/space-32k-8:             -      - 




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