David Bremner <da...@tethera.net> writes:
> Several people have observed that this is surprisingly slow, and we
> have a proposal to add tagging into this code path, so we want to make
> sure it doesn't imply too much of a performance hit.
On my SSD / 8th gen i7 / 32G RAM based debian workstation it seems OK,
with a max slowdown of 1.4% (mean of 5 runs). I'd like to see similar
figures for spinning rust and older CPUs. This is with Xapian 1.4.11;
ideally so would other comparisons.
| | Before | After | slowdown % |
| initial | 517.69 | 522.13 | 0.9 |
| mv | 313.16 | 317.57 | 1.4 |
| mv back | 315.21 | 316.73 | 0.5 |
| cp | 170.36 | 171.08 | 0.4 |
#+TBLFM: $4=100*($3/$2-1);f1
Raw data is attached for the curious
with patch
T00-new.sh: Testing notmuch new [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
Initial notmuch new 521.81 405.90 111.16 273992 0/15876448
notmuch new #2 0.02 0.01 0.00 12632 0/144
notmuch new #3 0.00 0.00 0.00 8872 0/8
notmuch new #4 0.00 0.00 0.00 8900 0/8
notmuch new #5 0.00 0.00 0.00 9004 0/8
notmuch new #6 0.00 0.00 0.00 8728 0/8
new (52374 mv) 316.30 219.89 95.42 146136 0/4611440
new (52374 mv back) 312.67 217.23 94.55 147476 0/4986256
new (52374 cp) 170.76 125.47 43.85 114360 0/4099808
T00-new.sh: Testing notmuch new [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
Initial notmuch new 523.08 405.39 112.02 274152 0/15871216
notmuch new #2 0.02 0.00 0.01 12372 0/144
notmuch new #3 0.02 0.01 0.00 8984 0/8
notmuch new #4 0.01 0.00 0.00 8820 0/8
notmuch new #5 0.00 0.00 0.00 8776 0/8
notmuch new #6 0.00 0.00 0.00 8776 0/8
new (52374 mv) 317.27 221.69 94.55 146424 0/4864352
new (52374 mv back) 318.88 222.51 95.31 146764 0/5063728
new (52374 cp) 172.09 126.18 44.75 114548 0/4073552
T00-new.sh: Testing notmuch new [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
Initial notmuch new 523.58 407.64 112.15 274100 0/16211056
notmuch new #2 0.02 0.01 0.00 12644 0/144
notmuch new #3 0.00 0.00 0.00 8828 0/8
notmuch new #4 0.00 0.00 0.00 8884 0/8
notmuch new #5 0.00 0.00 0.00 8916 0/8
notmuch new #6 0.00 0.00 0.00 8896 0/8
new (52374 mv) 318.53 222.16 95.60 146368 0/5056016
new (52374 mv back) 315.98 219.54 95.64 146796 0/4766496
new (52374 cp) 170.79 124.49 44.63 114560 0/4075616
T00-new.sh: Testing notmuch new [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
Initial notmuch new 519.77 403.60 111.33 274212 0/15964240
notmuch new #2 0.02 0.00 0.01 12456 0/144
notmuch new #3 0.00 0.00 0.00 9080 0/8
notmuch new #4 0.00 0.00 0.00 8884 0/8
notmuch new #5 0.00 0.00 0.00 9004 0/8
notmuch new #6 0.00 0.00 0.00 8840 0/8
new (52374 mv) 318.98 222.26 95.94 146332 0/4854864
new (52374 mv back) 319.39 221.87 96.65 146944 0/4969296
new (52374 cp) 170.72 124.50 44.63 114224 0/3817216
T00-new.sh: Testing notmuch new [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
Initial notmuch new 522.43 406.40 111.85 273936 0/16188560
notmuch new #2 0.88 0.01 0.01 12512 0/144
notmuch new #3 0.03 0.01 0.01 8756 0/8
notmuch new #4 0.00 0.00 0.00 8852 0/8
notmuch new #5 0.00 0.00 0.00 8832 0/8
notmuch new #6 0.00 0.00 0.00 8864 0/8
new (52374 mv) 316.75 219.96 95.79 146496 0/4866064
new (52374 mv back) 316.73 220.40 95.33 146760 0/5034928
new (52374 cp) 171.03 125.37 44.34 114384 0/4096496
----------------------------------------------------------------------
without patch:
T00-new.sh: Testing notmuch new [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
Initial notmuch new 517.73 403.06 110.61 284648 0/14723776
notmuch new #2 0.01 0.00 0.00 8760 0/8
notmuch new #3 0.01 0.00 0.01 8928 0/8
notmuch new #4 0.01 0.01 0.00 8812 0/8
notmuch new #5 0.01 0.00 0.01 8928 0/8
notmuch new #6 0.00 0.00 0.00 8832 0/8
new (52374 mv) 314.48 218.67 94.55 146560 0/4774288
new (52374 mv back) 319.43 222.46 96.09 146780 0/4731808
new (52374 cp) 169.92 125.07 43.83 114476 0/3946896
T00-new.sh: Testing notmuch new [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
Initial notmuch new 516.03 401.91 109.94 284668 0/14725200
notmuch new #2 0.88 0.01 0.01 12420 0/144
notmuch new #3 0.01 0.00 0.00 8888 0/8
notmuch new #4 0.00 0.00 0.00 8760 0/8
notmuch new #5 0.00 0.00 0.00 8848 0/8
notmuch new #6 0.00 0.00 0.00 8864 0/8
new (52374 mv) 311.78 217.74 93.29 146456 8/4774576
new (52374 mv back) 312.88 219.64 92.07 147064 0/4785104
new (52374 cp) 170.95 125.16 44.57 114384 0/3688016
T00-new.sh: Testing notmuch new [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
Initial notmuch new 517.58 404.56 110.22 284608 0/15282160
notmuch new #2 0.02 0.00 0.01 12664 0/144
notmuch new #3 0.00 0.00 0.00 8956 0/8
notmuch new #4 0.00 0.00 0.00 8804 0/8
notmuch new #5 0.00 0.00 0.00 8892 0/8
notmuch new #6 0.00 0.00 0.00 8844 0/8
new (52374 mv) 313.10 217.43 94.61 146108 0/4980176
new (52374 mv back) 315.64 219.17 95.49 147176 0/4943408
new (52374 cp) 169.27 124.51 43.71 114500 0/3946928
T00-new.sh: Testing notmuch new [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
Initial notmuch new 518.28 402.97 111.69 284836 0/14991824
notmuch new #2 0.00 0.00 0.00 8804 0/8
notmuch new #3 0.00 0.00 0.00 8764 0/8
notmuch new #4 0.00 0.00 0.00 8792 0/8
notmuch new #5 0.00 0.00 0.00 9068 0/8
notmuch new #6 0.00 0.00 0.00 8820 0/8
new (52374 mv) 314.22 218.72 94.45 146276 0/4761712
new (52374 mv back) 314.39 220.18 93.40 147288 0/4832464
new (52374 cp) 170.49 125.64 43.84 114380 0/3948064
T00-new.sh: Testing notmuch new [0.4 large]
Wall(s) Usr(s) Sys(s) Res(K) In/Out(512B)
Initial notmuch new 518.81 405.03 110.53 284696 0/14964736
notmuch new #2 0.94 0.00 0.00 8808 0/144
notmuch new #3 0.01 0.00 0.00 9008 0/8
notmuch new #4 0.00 0.00 0.00 8768 0/8
notmuch new #5 0.00 0.00 0.00 8916 0/8
notmuch new #6 0.00 0.00 0.00 8776 0/8
new (52374 mv) 312.24 217.13 93.96 146492 0/4772608
new (52374 mv back) 313.70 218.13 93.98 147172 0/4753408
new (52374 cp) 171.15 125.01 44.42 114472 0/3970096
with patch
| Initial notmuch new | 519.77 | 403.60 | 111.33 | 274212 | 0/15964240 |
| Initial notmuch new | 521.81 | 405.90 | 111.16 | 273992 | 0/15876448 |
| Initial notmuch new | 522.43 | 406.40 | 111.85 | 273936 | 0/16188560 |
| Initial notmuch new | 523.08 | 405.39 | 112.02 | 274152 | 0/15871216 |
| Initial notmuch new | 523.58 | 407.64 | 112.15 | 274100 | 0/16211056 |
| | 522.13 | | | | |
#+TBLFM: @6$2=vmean(@1..@5);f2
| new (52374 cp) | 170.72 | 124.50 | 44.63 | 114224 | 0/3817216 |
| new (52374 cp) | 170.76 | 125.47 | 43.85 | 114360 | 0/4099808 |
| new (52374 cp) | 170.79 | 124.49 | 44.63 | 114560 | 0/4075616 |
| new (52374 cp) | 171.03 | 125.37 | 44.34 | 114384 | 0/4096496 |
| new (52374 cp) | 172.09 | 126.18 | 44.75 | 114548 | 0/4073552 |
| | 171.08 | | | | |
#+TBLFM: @6$2=vmean(@1..@5);f2
| new (52374 mv) | 316.30 | 219.89 | 95.42 | 146136 | 0/4611440 |
| new (52374 mv) | 316.75 | 219.96 | 95.79 | 146496 | 0/4866064 |
| new (52374 mv) | 317.27 | 221.69 | 94.55 | 146424 | 0/4864352 |
| new (52374 mv) | 318.53 | 222.16 | 95.60 | 146368 | 0/5056016 |
| new (52374 mv) | 318.98 | 222.26 | 95.94 | 146332 | 0/4854864 |
| | 317.57 | | | | |
#+TBLFM: @6$2=vmean(@1..@5);f2
| new (52374 mv back) | 312.67 | 217.23 | 94.55 | 147476 | 0/4986256 |
| new (52374 mv back) | 315.98 | 219.54 | 95.64 | 146796 | 0/4766496 |
| new (52374 mv back) | 316.73 | 220.40 | 95.33 | 146760 | 0/5034928 |
| new (52374 mv back) | 318.88 | 222.51 | 95.31 | 146764 | 0/5063728 |
| new (52374 mv back) | 319.39 | 221.87 | 96.65 | 146944 | 0/4969296 |
| | 316.73 | | | | |
#+TBLFM: @6$2=vmean(@1..@5);f2
----------------------------------------------------------------------
without patch:
| Initial notmuch new | 516.03 | 401.91 | 109.94 | 284668 | 0/14725200 |
| Initial notmuch new | 517.58 | 404.56 | 110.22 | 284608 | 0/15282160 |
| Initial notmuch new | 517.73 | 403.06 | 110.61 | 284648 | 0/14723776 |
| Initial notmuch new | 518.28 | 402.97 | 111.69 | 284836 | 0/14991824 |
| Initial notmuch new | 518.81 | 405.03 | 110.53 | 284696 | 0/14964736 |
| | 517.69 | | | | |
#+TBLFM: @6$2=vmean(@1..@5);f2
| new (52374 cp) | 169.27 | 124.51 | 43.71 | 114500 | 0/3946928 |
| new (52374 cp) | 169.92 | 125.07 | 43.83 | 114476 | 0/3946896 |
| new (52374 cp) | 170.49 | 125.64 | 43.84 | 114380 | 0/3948064 |
| new (52374 cp) | 170.95 | 125.16 | 44.57 | 114384 | 0/3688016 |
| new (52374 cp) | 171.15 | 125.01 | 44.42 | 114472 | 0/3970096 |
| | 170.36 | | | | |
#+TBLFM: @6$2=vmean(@1..@5);f2
| new (52374 mv) | 311.78 | 217.74 | 93.29 | 146456 | 8/4774576 |
| new (52374 mv) | 312.24 | 217.13 | 93.96 | 146492 | 0/4772608 |
| new (52374 mv) | 313.10 | 217.43 | 94.61 | 146108 | 0/4980176 |
| new (52374 mv) | 314.22 | 218.72 | 94.45 | 146276 | 0/4761712 |
| new (52374 mv) | 314.48 | 218.67 | 94.55 | 146560 | 0/4774288 |
| | 313.16 | | | | |
#+TBLFM: @6$2=vmean(@1..@5);f2
| new (52374 mv back) | 312.88 | 219.64 | 92.07 | 147064 | 0/4785104 |
| new (52374 mv back) | 313.70 | 218.13 | 93.98 | 147172 | 0/4753408 |
| new (52374 mv back) | 314.39 | 220.18 | 93.40 | 147288 | 0/4832464 |
| new (52374 mv back) | 315.64 | 219.17 | 95.49 | 147176 | 0/4943408 |
| new (52374 mv back) | 319.43 | 222.46 | 96.09 | 146780 | 0/4731808 |
| | 315.21 | | | | |
#+TBLFM: @6$2=vmean(@1..@5);f2
| | Before | After | slowdown % |
| initial | 517.69 | 522.13 | 0.9 |
| mv | 313.16 | 317.57 | 1.4 |
| mv back | 315.21 | 316.73 | 0.5 |
| cp | 170.36 | 171.08 | 0.4 |
#+TBLFM: $4=100*($3/$2-1);f1
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