On 4/6/2017 4:20 PM, René Scharfe wrote:
Am 05.04.2017 um 19:38 schrieb git@xxxxxxxxxxxxxxxxx:From: Jeff Hostetler <jeffhost@xxxxxxxxxxxxx> Signed-off-by: Jeff Hostetler <jeffhost@xxxxxxxxxxxxx> --- t/perf/p0004-read-tree.sh | 116 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 116 insertions(+) create mode 100755 t/perf/p0004-read-tree.sh diff --git a/t/perf/p0004-read-tree.sh b/t/perf/p0004-read-tree.sh new file mode 100755 index 0000000..5d8bbf5 --- /dev/null +++ b/t/perf/p0004-read-tree.sh @@ -0,0 +1,116 @@ +#!/bin/sh + +test_description="Tests performance of read-tree" + +. ./perf-lib.sh + +test_perf_default_repo +test_checkout_worktree + +## usage: dir depth width files +make_paths () { + for f in $(seq $4) + do + echo $1/file$f + done; + if test $2 -gt 0; + then + for w in $(seq $3) + do + make_paths $1/dir$w $(($2 - 1)) $3 $4 + done + fi + return 0 +}"make_paths xxx_dir_xxx 5 10 9" takes more than a minute for me. Providing its results as a file would be quicker but less flexible. The following command prints the same result in less than a second. awk -v dir=xxx_dir_xxx -v depth=5 -v width=10 -v files=9 ' function make_paths(dir, depth, width, files, i) { for (i = 1; i <= files; i++) { print dir "/file" i } if (depth > 0) { for (i = 1; i <= width; i++) { make_paths(dir "/dir" i, depth - 1, width, files) } } } END {make_paths(dir, depth, width, files)} ' </dev/null It's faster because it avoids calling seq thousands of times.
Very nice!!! I'll give that a try. Thanks!
+ +fill_index () { + make_paths $1 $2 $3 $4 | + sed "s/^/100644 $EMPTY_BLOB /" |You could add the prefix to the script above and avoid this sed call as well. René