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speed up hg log --patch Changing dodiff to read the manifest/changelog for node1 before calling repo.update allows us to take advantage of the revlog revision cache. Before this patch and my previous "speed up hg log --debug" patch, when using hg log -p to display three revisions (A, B and C), dodiff and repo.changes would end up reading the manifests in this order: B A B A C B C B With both patches, this order becomes: A A B B B B C C (This considers only dodiff and repo.changes. I'm not sure how other parts of hg log enter the picture.) The speed up will depend on the revisions being displayed. (All "before" times already have my previous "speed up hg log --debug" patch applied.) hg repo (tip = 414e81ae971f). hg log -p before after real 0m50.981s 0m45.279s user 0m47.930s 0m42.560s sys 0m2.526s 0m2.523s output size: 6917897 bytes kernel repo (tip = 9d4e135960ed). hg log -p -l64 before after real 2m14.995s 1m45.025s user 2m9.509s 1m33.900s sys 0m3.663s 0m2.942s output size: 31497621 bytes same kernel repo. hg log -p -l64 -r c84c2069592f:0 before after real 1m48.045s 1m0.076s user 1m44.094s 0m58.492s sys 0m2.603s 0m1.103s output size: 197983 bytes c84c2069592f was the tip of a 10 day old kernel repo that I had lying around and was where I first tested this patch. For some weird coincidence it's also a place where the patch makes a huge difference.
author Alexis S. L. Carvalho <alexis@cecm.usp.br>
date Sun, 26 Feb 2006 02:26:17 +0100
parents 332f225b835c
children df8416346bb7
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adding beans/black
adding beans/borlotti
adding beans/kidney
adding beans/navy
adding beans/pinto
adding beans/turtle
adding fennel
adding fenugreek
adding fiddlehead
adding glob:glob
adding mammals/Procyonidae/cacomistle
adding mammals/Procyonidae/coatimundi
adding mammals/Procyonidae/raccoon
adding mammals/skunk
f  beans/black                     beans/black
f  beans/borlotti                  beans/borlotti
f  beans/kidney                    beans/kidney
f  beans/navy                      beans/navy
f  beans/pinto                     beans/pinto
f  beans/turtle                    beans/turtle
f  fennel                          fennel
f  fenugreek                       fenugreek
f  fiddlehead                      fiddlehead
f  glob:glob                       glob:glob
f  mammals/Procyonidae/cacomistle  mammals/Procyonidae/cacomistle
f  mammals/Procyonidae/coatimundi  mammals/Procyonidae/coatimundi
f  mammals/Procyonidae/raccoon     mammals/Procyonidae/raccoon
f  mammals/skunk                   mammals/skunk
f  mammals/Procyonidae/cacomistle  Procyonidae/cacomistle
f  mammals/Procyonidae/coatimundi  Procyonidae/coatimundi
f  mammals/Procyonidae/raccoon     Procyonidae/raccoon
f  mammals/skunk                   skunk
f  mammals/Procyonidae/cacomistle  Procyonidae/cacomistle
f  mammals/Procyonidae/coatimundi  Procyonidae/coatimundi
f  mammals/Procyonidae/raccoon     Procyonidae/raccoon
f  mammals/Procyonidae/cacomistle  cacomistle
f  mammals/Procyonidae/coatimundi  coatimundi
f  mammals/Procyonidae/raccoon     raccoon
f  mammals/Procyonidae/cacomistle  cacomistle
f  mammals/Procyonidae/coatimundi  coatimundi
f  mammals/Procyonidae/raccoon     raccoon
f  mammals/skunk                   ../skunk
f  beans/black     ../beans/black
f  beans/borlotti  ../beans/borlotti
f  beans/kidney    ../beans/kidney
f  beans/navy      ../beans/navy
f  beans/pinto     ../beans/pinto
f  beans/turtle    ../beans/turtle
f  mammals/Procyonidae/cacomistle  Procyonidae/cacomistle
f  mammals/Procyonidae/coatimundi  Procyonidae/coatimundi
f  mammals/Procyonidae/raccoon     Procyonidae/raccoon
f  mammals/skunk                   skunk
f  beans/black     beans/black
f  beans/borlotti  beans/borlotti
f  beans/kidney    beans/kidney
f  beans/navy      beans/navy
f  beans/pinto     beans/pinto
f  beans/turtle    beans/turtle
f  beans/black     beans/black
f  beans/borlotti  beans/borlotti
f  mammals/skunk  mammals/skunk
f  mammals/Procyonidae/cacomistle  mammals/Procyonidae/cacomistle
f  mammals/Procyonidae/coatimundi  mammals/Procyonidae/coatimundi
f  mammals/Procyonidae/raccoon     mammals/Procyonidae/raccoon
f  mammals/skunk                   mammals/skunk
abort: .. not under root
abort: beans/../.. not under root
f  fennel      fennel
f  fenugreek   fenugreek
f  fiddlehead  fiddlehead
f  glob:glob   glob:glob
f  beans/black    beans/black
f  fenugreek      fenugreek
f  glob:glob      glob:glob
f  mammals/skunk  mammals/skunk
f  beans/black  beans/black
f  beans/black     beans/black
f  beans/borlotti  beans/borlotti
f  beans/kidney    beans/kidney
f  beans/navy      beans/navy
f  beans/pinto     beans/pinto
f  beans/turtle    beans/turtle
NOEXIST: No such file or directory
fifo: unsupported file type (type is fifo)
m  fenugreek  fenugreek  exact
m  fenugreek  fenugreek  exact
f  new  new  exact