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[improvement](statistics)Reduce partition column sample BE memory consumption. (#41203) - #41359
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Jibing-Li
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September 26, 2024 10:09
doris-robot
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Sep 26, 2024
Thank you for your contribution to Apache Doris. Since 2024-03-18, the Document has been moved to doris-website. |
Jibing-Li
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Sep 26, 2024
ContributorAuthor
run buildall |
doris-robot
commented
Sep 26, 2024
TPC-H: Total hot run time: 49003 ms |
doris-robot
commented
Sep 26, 2024
TPC-DS: Total hot run time: 212359 ms |
doris-robot
commented
Sep 26, 2024
ClickBench: Total hot run time: 30.47 s |
doris-robot
commented
Sep 26, 2024
Load test result on machine: 'aliyun_ecs.c7a.8xlarge_32C64G' |
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79700f3CompareJibing-Li
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Sep 27, 2024
ContributorAuthor
run buildall |
doris-robot
commented
Sep 27, 2024
TPC-H: Total hot run time: 48916 ms |
doris-robot
commented
Sep 27, 2024
TPC-DS: Total hot run time: 211911 ms |
doris-robot
commented
Sep 27, 2024
ClickBench: Total hot run time: 31.3 s |
doris-robot
commented
Sep 27, 2024
Load test result on machine: 'aliyun_ecs.c7a.8xlarge_32C64G' |
Jibing-Li
commented
Sep 27, 2024
ContributorAuthor
run external |
4 similar comments
Jibing-Li
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Sep 27, 2024
ContributorAuthor
run external |
Jibing-Li
commented
Sep 27, 2024
ContributorAuthor
run external |
morrySnow
commented
Sep 27, 2024
Contributor
run external |
Jibing-Li
commented
Sep 27, 2024
ContributorAuthor
run external |
…sumption. (apache#41203) For string type columns, use xxhash_64 to transfer column value to an integer, and then calculate the NDV based on the integer hash value. In this case, we can reduce the memory cost of sample analyze and improve the performance. For example, l_comment column of TPCH 100G lineitem table. The memory cost to calculate its NDV is reduced to 8GB from 22GB
Jibing-Li
commented
Oct 8, 2024
ContributorAuthor
run buildall |
doris-robot
commented
Oct 8, 2024
TPC-H: Total hot run time: 49176 ms |
doris-robot
commented
Oct 8, 2024
TPC-DS: Total hot run time: 211951 ms |
doris-robot
commented
Oct 8, 2024
ClickBench: Total hot run time: 30.9 s |
doris-robot
commented
Oct 8, 2024
Load test result on machine: 'aliyun_ecs.c7a.8xlarge_32C64G' |
Jibing-Li
commented
Oct 8, 2024
ContributorAuthor
run p0 |
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backport: #41203