1. Git Clone with tree:zero

time git clone --filter=tree:0  https://github.com/dart-lang/sdk.git
正克隆到 'sdk'...
remote: Enumerating objects: 126124, done.
remote: Counting objects: 100% (18/18), done.
remote: Compressing objects: 100% (17/17), done.
remote: Total 126124 (delta 1), reused 11 (delta 1), pack-reused 126106 (from 3)
接收对象中: 100% (126124/126124), 41.03 MiB | 10.03 MiB/s, 完成.
处理 delta 中: 100% (9170/9170), 完成.
remote: Enumerating objects: 2731, done.
remote: Counting objects: 100% (896/896), done.
remote: Compressing objects: 100% (876/876), done.
remote: Total 2731 (delta 29), reused 21 (delta 17), pack-reused 1835 (from 3)
接收对象中: 100% (2731/2731), 1.37 MiB | 2.88 MiB/s, 完成.
处理 delta 中: 100% (49/49), 完成.
remote: Enumerating objects: 41929, done.
remote: Counting objects: 100% (22429/22429), done.
remote: Compressing objects: 100% (14922/14922), done.
remote: Total 41929 (delta 10062), reused 7456 (delta 7456), pack-reused 19500 (from 3)
接收对象中: 100% (41929/41929), 40.57 MiB | 11.23 MiB/s, 完成.
处理 delta 中: 100% (17137/17137), 完成.
正在更新文件: 100% (51796/51796), 完成.

________________________________________________________
Executed in   30.82 secs    fish           external
   usr time    6.87 secs    0.26 millis    6.87 secs
   sys time    7.52 secs    1.48 millis    7.52 secs

2. Git Clone with blon:none

time git clone --filter=blob:none  https://github.com/dart-lang/sdk.git sdk2
正克隆到 'sdk2'...
remote: Enumerating objects: 982942, done.
remote: Counting objects: 100% (290/290), done.
remote: Compressing objects: 100% (81/81), done.
remote: Total 982942 (delta 223), reused 226 (delta 204), pack-reused 982652 (from 3)
接收对象中: 100% (982942/982942), 209.93 MiB | 3.68 MiB/s, 完成.
处理 delta 中: 100% (722689/722689), 完成.
remote: Enumerating objects: 41930, done.
remote: Counting objects: 100% (22473/22473), done.
remote: Compressing objects: 100% (14953/14953), done.
remote: Total 41930 (delta 10075), reused 7478 (delta 7469), pack-reused 19457 (from 3)
接收对象中: 100% (41930/41930), 40.57 MiB | 5.49 MiB/s, 完成.
处理 delta 中: 100% (17131/17131), 完成.
正在更新文件: 100% (51797/51797), 完成.

________________________________________________________
Executed in   89.53 secs    fish           external
   usr time   23.27 secs  167.00 micros   23.27 secs
   sys time   13.07 secs  770.00 micros   13.07 secs

3. Git Clone with depth:1

time git clone --depth=1 --single-branch --branch=main  https://github.com/dart-lang/sdk.git sdk4
正克隆到 'sdk4'...
remote: Enumerating objects: 44662, done.
remote: Counting objects: 100% (44662/44662), done.
remote: Compressing objects: 100% (28829/28829), done.
remote: Total 44662 (delta 17247), reused 28726 (delta 14562), pack-reused 0 (from 0)
接收对象中: 100% (44662/44662), 41.86 MiB | 8.91 MiB/s, 完成.
处理 delta 中: 100% (17247/17247), 完成.
正在更新文件: 100% (51797/51797), 完成.

________________________________________________________
Executed in   16.99 secs    fish           external
   usr time    2.70 secs  184.00 micros    2.70 secs
   sys time    4.50 secs  910.00 micros    4.50 secs