* [PATCH] pack-revindex.h: fix typos of time complexity
@ 2021-09-15 8:42 Kyle Zhao via GitGitGadget
2021-09-15 8:48 ` Bagas Sanjaya
2021-09-15 9:09 ` [PATCH v2] pack-revindex.h: correct the time complexity descriptions Kyle Zhao via GitGitGadget
0 siblings, 2 replies; 6+ messages in thread
From: Kyle Zhao via GitGitGadget @ 2021-09-15 8:42 UTC (permalink / raw)
To: git; +Cc: Taylor Blau, Kyle Zhao, kylezhao
From: kylezhao <kylezhao@tencent.com>
Signed-off-by: kylezhao <kylezhao@tencent.com>
---
pack-revindex.h: fix typos of time complexity
It looks like the time complexity descriptions were written wrong.
Regards, Kyle
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-1039%2Fkeyu98%2Fkz%2Ffix-pack-revindex-typo-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-1039/keyu98/kz/fix-pack-revindex-typo-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/1039
pack-revindex.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/pack-revindex.h b/pack-revindex.h
index 479b8f2f9c9..74f4eae668d 100644
--- a/pack-revindex.h
+++ b/pack-revindex.h
@@ -109,7 +109,7 @@ off_t pack_pos_to_offset(struct packed_git *p, uint32_t pos);
* If the reverse index has not yet been loaded, or the position is out of
* bounds, this function aborts.
*
- * This function runs in time O(log N) with the number of objects in the MIDX.
+ * This function runs in constant time.
*/
uint32_t pack_pos_to_midx(struct multi_pack_index *m, uint32_t pos);
@@ -120,7 +120,7 @@ uint32_t pack_pos_to_midx(struct multi_pack_index *m, uint32_t pos);
* If the reverse index has not yet been loaded, or the position is out of
* bounds, this function aborts.
*
- * This function runs in constant time.
+ * This function runs in time O(log N) with the number of objects in the MIDX.
*/
int midx_to_pack_pos(struct multi_pack_index *midx, uint32_t at, uint32_t *pos);
base-commit: 8b7c11b8668b4e774f81a9f0b4c30144b818f1d1
--
gitgitgadget
^ permalink raw reply related [flat|nested] 6+ messages in thread* Re: [PATCH] pack-revindex.h: fix typos of time complexity
2021-09-15 8:42 [PATCH] pack-revindex.h: fix typos of time complexity Kyle Zhao via GitGitGadget
@ 2021-09-15 8:48 ` Bagas Sanjaya
2021-09-15 9:09 ` [PATCH v2] pack-revindex.h: correct the time complexity descriptions Kyle Zhao via GitGitGadget
1 sibling, 0 replies; 6+ messages in thread
From: Bagas Sanjaya @ 2021-09-15 8:48 UTC (permalink / raw)
To: Kyle Zhao via GitGitGadget, git; +Cc: Taylor Blau, Kyle Zhao, kylezhao
On 15/09/21 15.42, Kyle Zhao via GitGitGadget wrote:
> From: kylezhao <kylezhao@tencent.com>
>
> Signed-off-by: kylezhao <kylezhao@tencent.com>
> ---
> pack-revindex.h: fix typos of time complexity
>
> It looks like the time complexity descriptions were written wrong.
>
> Regards, Kyle
>
> Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-1039%2Fkeyu98%2Fkz%2Ffix-pack-revindex-typo-v1
> Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-1039/keyu98/kz/fix-pack-revindex-typo-v1
> Pull-Request: https://github.com/gitgitgadget/git/pull/1039
>
> pack-revindex.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/pack-revindex.h b/pack-revindex.h
> index 479b8f2f9c9..74f4eae668d 100644
> --- a/pack-revindex.h
> +++ b/pack-revindex.h
> @@ -109,7 +109,7 @@ off_t pack_pos_to_offset(struct packed_git *p, uint32_t pos);
> * If the reverse index has not yet been loaded, or the position is out of
> * bounds, this function aborts.
> *
> - * This function runs in time O(log N) with the number of objects in the MIDX.
> + * This function runs in constant time.
> */
> uint32_t pack_pos_to_midx(struct multi_pack_index *m, uint32_t pos);
>
> @@ -120,7 +120,7 @@ uint32_t pack_pos_to_midx(struct multi_pack_index *m, uint32_t pos);
> * If the reverse index has not yet been loaded, or the position is out of
> * bounds, this function aborts.
> *
> - * This function runs in constant time.
> + * This function runs in time O(log N) with the number of objects in the MIDX.
> */
> int midx_to_pack_pos(struct multi_pack_index *midx, uint32_t at, uint32_t *pos);
>
>
> base-commit: 8b7c11b8668b4e774f81a9f0b4c30144b818f1d1
>
The commit message should be "time complexities for pack_pos_to_midx and
midx_to_pack_pos are swapped, correct it". Of course, this is not typofix.
--
An old man doll... just what I always wanted! - Clara
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v2] pack-revindex.h: correct the time complexity descriptions
2021-09-15 8:42 [PATCH] pack-revindex.h: fix typos of time complexity Kyle Zhao via GitGitGadget
2021-09-15 8:48 ` Bagas Sanjaya
@ 2021-09-15 9:09 ` Kyle Zhao via GitGitGadget
2021-09-15 9:12 ` Bagas Sanjaya
2021-09-16 5:10 ` Taylor Blau
1 sibling, 2 replies; 6+ messages in thread
From: Kyle Zhao via GitGitGadget @ 2021-09-15 9:09 UTC (permalink / raw)
To: git; +Cc: Taylor Blau, Bagas Sanjaya, Kyle Zhao, kylezhao
From: kylezhao <kylezhao@tencent.com>
Time complexities for pack_pos_to_midx and midx_to_pack_pos are swapped,
correct it.
Signed-off-by: kylezhao <kylezhao@tencent.com>
---
pack-revindex.h: correct the time complexity descriptions
It looks like the time complexity descriptions were written wrong.
Regards, Kyle
Changes since v1:
* changed the commit message
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-1039%2Fkeyu98%2Fkz%2Ffix-pack-revindex-typo-v2
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-1039/keyu98/kz/fix-pack-revindex-typo-v2
Pull-Request: https://github.com/gitgitgadget/git/pull/1039
Range-diff vs v1:
1: 8915a8f55ba ! 1: a2e9df25ac9 pack-revindex.h: fix typos of time complexity
@@ Metadata
Author: kylezhao <kylezhao@tencent.com>
## Commit message ##
- pack-revindex.h: fix typos of time complexity
+ pack-revindex.h: correct the time complexity descriptions
+
+ Time complexities for pack_pos_to_midx and midx_to_pack_pos are swapped,
+ correct it.
Signed-off-by: kylezhao <kylezhao@tencent.com>
pack-revindex.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/pack-revindex.h b/pack-revindex.h
index 479b8f2f9c9..74f4eae668d 100644
--- a/pack-revindex.h
+++ b/pack-revindex.h
@@ -109,7 +109,7 @@ off_t pack_pos_to_offset(struct packed_git *p, uint32_t pos);
* If the reverse index has not yet been loaded, or the position is out of
* bounds, this function aborts.
*
- * This function runs in time O(log N) with the number of objects in the MIDX.
+ * This function runs in constant time.
*/
uint32_t pack_pos_to_midx(struct multi_pack_index *m, uint32_t pos);
@@ -120,7 +120,7 @@ uint32_t pack_pos_to_midx(struct multi_pack_index *m, uint32_t pos);
* If the reverse index has not yet been loaded, or the position is out of
* bounds, this function aborts.
*
- * This function runs in constant time.
+ * This function runs in time O(log N) with the number of objects in the MIDX.
*/
int midx_to_pack_pos(struct multi_pack_index *midx, uint32_t at, uint32_t *pos);
base-commit: 8b7c11b8668b4e774f81a9f0b4c30144b818f1d1
--
gitgitgadget
^ permalink raw reply related [flat|nested] 6+ messages in thread* Re: [PATCH v2] pack-revindex.h: correct the time complexity descriptions
2021-09-15 9:09 ` [PATCH v2] pack-revindex.h: correct the time complexity descriptions Kyle Zhao via GitGitGadget
@ 2021-09-15 9:12 ` Bagas Sanjaya
2021-09-16 5:10 ` Taylor Blau
1 sibling, 0 replies; 6+ messages in thread
From: Bagas Sanjaya @ 2021-09-15 9:12 UTC (permalink / raw)
To: Kyle Zhao via GitGitGadget, git; +Cc: Taylor Blau, Kyle Zhao, kylezhao
On 15/09/21 16.09, Kyle Zhao via GitGitGadget wrote:
> From: kylezhao <kylezhao@tencent.com>
>
> Time complexities for pack_pos_to_midx and midx_to_pack_pos are swapped,
> correct it.
>
> Signed-off-by: kylezhao <kylezhao@tencent.com>
> ---
<snip>...
> pack-revindex.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/pack-revindex.h b/pack-revindex.h
> index 479b8f2f9c9..74f4eae668d 100644
> --- a/pack-revindex.h
> +++ b/pack-revindex.h
> @@ -109,7 +109,7 @@ off_t pack_pos_to_offset(struct packed_git *p, uint32_t pos);
> * If the reverse index has not yet been loaded, or the position is out of
> * bounds, this function aborts.
> *
> - * This function runs in time O(log N) with the number of objects in the MIDX.
> + * This function runs in constant time.
> */
> uint32_t pack_pos_to_midx(struct multi_pack_index *m, uint32_t pos);
>
> @@ -120,7 +120,7 @@ uint32_t pack_pos_to_midx(struct multi_pack_index *m, uint32_t pos);
> * If the reverse index has not yet been loaded, or the position is out of
> * bounds, this function aborts.
> *
> - * This function runs in constant time.
> + * This function runs in time O(log N) with the number of objects in the MIDX.
> */
> int midx_to_pack_pos(struct multi_pack_index *midx, uint32_t at, uint32_t *pos);
>
>
> base-commit: 8b7c11b8668b4e774f81a9f0b4c30144b818f1d1
>
OK.
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
--
An old man doll... just what I always wanted! - Clara
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2] pack-revindex.h: correct the time complexity descriptions
2021-09-15 9:09 ` [PATCH v2] pack-revindex.h: correct the time complexity descriptions Kyle Zhao via GitGitGadget
2021-09-15 9:12 ` Bagas Sanjaya
@ 2021-09-16 5:10 ` Taylor Blau
2021-09-16 5:15 ` Junio C Hamano
1 sibling, 1 reply; 6+ messages in thread
From: Taylor Blau @ 2021-09-16 5:10 UTC (permalink / raw)
To: Kyle Zhao via GitGitGadget
Cc: git, Taylor Blau, Bagas Sanjaya, Kyle Zhao, kylezhao
On Wed, Sep 15, 2021 at 09:09:23AM +0000, Kyle Zhao via GitGitGadget wrote:
> From: kylezhao <kylezhao@tencent.com>
>
> Time complexities for pack_pos_to_midx and midx_to_pack_pos are swapped,
> correct it.
Great eyes! Thanks for noticing and fixing. I took a look through the
other three functions which convert between pack offset, pack position,
and index position, and those had the correct runtime noted.
But these two were swapped, and are now correct after your patch. Thanks
again.
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Thanks,
Taylor
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [PATCH v2] pack-revindex.h: correct the time complexity descriptions
2021-09-16 5:10 ` Taylor Blau
@ 2021-09-16 5:15 ` Junio C Hamano
0 siblings, 0 replies; 6+ messages in thread
From: Junio C Hamano @ 2021-09-16 5:15 UTC (permalink / raw)
To: Taylor Blau
Cc: Kyle Zhao via GitGitGadget, git, Bagas Sanjaya, Kyle Zhao, kylezhao
Taylor Blau <me@ttaylorr.com> writes:
> But these two were swapped, and are now correct after your patch. Thanks
> again.
>
> Reviewed-by: Taylor Blau <me@ttaylorr.com>
>
> Thanks,
> Taylor
Yup, both are from f894081d (pack-revindex: read multi-pack reverse
indexes, 2021-03-30) and a "reviewed-by:" from the person who wrote
it certainly is appreciated :-).
Thanks, both.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-09-16 5:15 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2021-09-15 8:42 [PATCH] pack-revindex.h: fix typos of time complexity Kyle Zhao via GitGitGadget
2021-09-15 8:48 ` Bagas Sanjaya
2021-09-15 9:09 ` [PATCH v2] pack-revindex.h: correct the time complexity descriptions Kyle Zhao via GitGitGadget
2021-09-15 9:12 ` Bagas Sanjaya
2021-09-16 5:10 ` Taylor Blau
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