git/list[1] front-page[2] threads[3] people[4] search[5] about
 

[PATCH/RFC/GSoC 01/17] perf: introduce performance tests for git-rebase

From
Paul Tan <pyokagan@gmail.com>
Date
Mar 12, 2016, 10:46 UTC
Message-ID
<1457779597-6918-2-git-send-email-pyokagan@gmail.com>
In-Reply-To
<1457779597-6918-1-git-send-email-pyokagan@gmail.com>

To determine the speedup (or slowdown) of the upcoming git-rebase rewrite to C, add a simple performance test for each of the 3 git-rebase backends (am, merge and interactive).

Signed-off-by: Paul Tan <pyokagan@gmail.com>
---
 t/perf/p3400-rebase.sh             | 25 +++++++++++++++++++++++++
 t/perf/p3402-rebase-merge.sh       | 25 +++++++++++++++++++++++++
 t/perf/p3404-rebase-interactive.sh | 26 ++++++++++++++++++++++++++
 3 files changed, 76 insertions(+)
 create mode 100755 t/perf/p3400-rebase.sh
 create mode 100755 t/perf/p3402-rebase-merge.sh
 create mode 100755 t/perf/p3404-rebase-interactive.sh
diff --git a/t/perf/p3400-rebase.sh b/t/perf/p3400-rebase.sh
new file mode 100755
index 0000000..f172a64
--- /dev/null
+++ b/t/perf/p3400-rebase.sh
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+test_description="Tests rebase performance with am backend"
+
+. ./perf-lib.sh
+
+test_perf_default_repo
+test_checkout_worktree
+
+# Setup a topic branch with 50 commits
+test_expect_success 'setup topic branch' '
+	git checkout -b perf-topic-branch master &&
+	for i in $(test_seq 50); do
+		test_commit perf-$i file
+	done &&
+	git tag perf-topic-branch-initial
+'
+
+test_perf 'rebase --onto master^' '
+	git checkout perf-topic-branch &&
+	git reset --hard perf-topic-branch-initial &&
+	git rebase --onto master^ master
+'
+
+test_done
diff --git a/t/perf/p3402-rebase-merge.sh b/t/perf/p3402-rebase-merge.sh
new file mode 100755
index 0000000..b71ce12
--- /dev/null
+++ b/t/perf/p3402-rebase-merge.sh
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+test_description="Tests rebase performance with merge backend"
+
+. ./perf-lib.sh
+
+test_perf_default_repo
+test_checkout_worktree
+
+# Setup a topic branch with 50 commits
+test_expect_success 'setup topic branch' '
+	git checkout -b perf-topic-branch master &&
+	for i in $(test_seq 50); do
+		test_commit perf-$i file
+	done &&
+	git tag perf-topic-branch-initial
+'
+
+test_perf 'rebase -m --onto master^' '
+	git checkout perf-topic-branch &&
+	git reset --hard perf-topic-branch-initial &&
+	git rebase -m --onto master^ master
+'
+
+test_done
diff --git a/t/perf/p3404-rebase-interactive.sh b/t/perf/p3404-rebase-interactive.sh
new file mode 100755
index 0000000..aaca105
--- /dev/null
+++ b/t/perf/p3404-rebase-interactive.sh
@@ -0,0 +1,26 @@
+#!/bin/sh
+
+test_description="Tests interactive rebase performance"
+
+. ./perf-lib.sh
+. "$TEST_DIRECTORY"/lib-rebase.sh
+
+test_perf_default_repo
+test_checkout_worktree
+
+# Setup a topic branch with 50 commits
+test_expect_success 'setup topic branch' '
+	git checkout -b perf-topic-branch master &&
+	for i in $(test_seq 50); do
+		test_commit perf-$i file
+	done &&
+	git tag perf-topic-branch-initial
+'
+
+test_perf 'rebase -i --onto master^' '
+	git checkout perf-topic-branch &&
+	git reset --hard perf-topic-branch-initial &&
+	GIT_SEQUENCE_EDITOR=: git rebase -i --onto master^ master
+'
+
+test_done
-- 
2.7.0
Previous: Paul TanNext: Johannes Schindelin
Message 2 of 59 in “A barebones git-rebase in C”
  1. 00/17 A barebones git-rebase in CPaul Tan, Mar 12, 2016
  2. 01/17 perf: introduce performance tests for git-rebasePaul Tan, Mar 12, 2016
  3. Johannes SchindelinMar 16, 2016
  4. Paul TanMar 16, 2016
  5. Johannes SchindelinMar 16, 2016
  6. Thomas GummererMar 18, 2016
  7. Johannes SchindelinMar 18, 2016
  8. Thomas GummererMar 20, 2016
  9. Johannes SchindelinMar 21, 2016
  10. 02/17 sha1_name: implement get_oid() and friendsPaul Tan, Mar 12, 2016
  11. 03/17 builtin-rebase: implement skeletal builtin rebasePaul Tan, Mar 12, 2016
  12. Stefan BellerMar 14, 2016
  13. Johannes SchindelinMar 15, 2016
  14. 04/17 builtin-rebase: parse rebase arguments into a common rebase_options structPaul Tan, Mar 12, 2016
  15. Stefan BellerMar 14, 2016
  16. Johannes SchindelinMar 15, 2016
  17. 05/17 rebase-options: implement rebase_options_load() and rebase_options_save()Paul Tan, Mar 12, 2016
  18. Stefan BellerMar 14, 2016
  19. Johannes SchindelinMar 16, 2016
  20. Paul TanMar 16, 2016
  21. Johannes SchindelinMar 16, 2016
  22. Paul TanMar 21, 2016
  23. Paul TanMar 16, 2016
  24. Stefan BellerMar 16, 2016
  25. 06/17 rebase-am: introduce am backend for builtin rebasePaul Tan, Mar 12, 2016
  26. Johannes SchindelinMar 16, 2016
  27. 07/17 rebase-common: implement refresh_and_write_cache()Paul Tan, Mar 12, 2016
  28. Junio C HamanoMar 14, 2016
  29. Paul TanMar 16, 2016
  30. 08/17 rebase-common: let refresh_and_write_cache() take a flags argumentPaul Tan, Mar 12, 2016
  31. 09/17 rebase-common: implement cache_has_unstaged_changes()Paul Tan, Mar 12, 2016
  32. Johannes SchindelinMar 14, 2016
  33. Junio C HamanoMar 14, 2016
  34. Johannes SchindelinMar 15, 2016
  35. Duy NguyenMar 15, 2016
  36. Johannes SchindelinMar 15, 2016
  37. 10/17 rebase-common: implement cache_has_uncommitted_changes()Paul Tan, Mar 12, 2016
  38. 11/17 rebase-merge: introduce merge backend for builtin rebasePaul Tan, Mar 12, 2016
  39. 12/17 rebase-todo: introduce rebase_todo_itemPaul Tan, Mar 12, 2016
  40. Christian CouderMar 14, 2016
  41. Johannes SchindelinMar 14, 2016
  42. Paul TanMar 16, 2016
  43. Johannes SchindelinMar 16, 2016
  44. 13/17 rebase-todo: introduce rebase_todo_listPaul Tan, Mar 12, 2016
  45. 14/17 status: use rebase_todo_listPaul Tan, Mar 12, 2016
  46. 15/17 wrapper: implement append_file()Paul Tan, Mar 12, 2016
  47. 16/17 editor: implement git_sequence_editor() and launch_sequence_editor()Paul Tan, Mar 12, 2016
  48. Johannes SchindelinMar 15, 2016
  49. Paul TanMar 16, 2016
  50. Johannes SchindelinMar 16, 2016
  51. 17/17 rebase-interactive: introduce interactive backend for builtin rebasePaul Tan, Mar 12, 2016
  52. Johannes SchindelinMar 15, 2016
  53. Paul TanMar 15, 2016
  54. Johannes SchindelinMar 15, 2016
  55. Duy NguyenMar 14, 2016
  56. Stefan BellerMar 14, 2016
  57. Junio C HamanoMar 14, 2016
  58. Paul TanMar 16, 2016
  59. Johannes SchindelinMar 14, 2016

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.