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Type: Task
Resolution: Fixed
Priority: Major - P3
Fix Version/s: WT10.0.0, 4.4.1, 4.7.0, 4.2.10, 4.0.21
Affects Version/s: None
Component/s: None
Labels:
- perfomance

Sprint:
None
Story Points:
13

Backport Requested:

v4.2, v4.0

There have been some discussions on ~~SERVER-31704~~ about adjusting the hash size. We should review these changes and conduct some perf tests.

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high_level.png
Aug 12 2020 08:36:32 AM UTC
269 kB
Dmitry Agranat
4.4.0-56-g17e5bae.png
Aug 12 2020 08:37:59 AM UTC
253 kB
Dmitry Agranat
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diagnostic.data_4.0.19_4.2.8_4.4.0.zip
Aug 12 2020 08:40:04 AM UTC
5.87 MB
Dmitry Agranat
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diagnostic.data_4.0.19_4.2.8_4.4.0.zip
Aug 12 2020 08:40:04 AM UTC
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Dmitry Agranat
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diagnostic.data_4.4.0-56-g17e5bae.zip
Aug 12 2020 08:40:43 AM UTC
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diagnostic.data_4.4.0-56-g17e5bae.zip
Aug 12 2020 08:40:43 AM UTC
6.99 MB
Dmitry Agranat

is related to

SERVER-31704 Periodic drops in throughput during checkpoints while waiting on schema lock

Closed

SERVER-40773 Slow queries every 80s under moderate load

Closed

WT-5479 Checkpoint schema lock can cause long stalls in command execution on systems with many active data handles

Closed

related to

WT-6598 Add new API allowing changing dhandle hash bucket size

Closed

WT-7288 Construct a many-dhandle-stress.wtperf workload

Closed

links to

PSMDB-587 Add options to control the size of several WiredTiger hash arrays concerned with data handles and one for session cursor cache

(1 links to)

Assignee:: Susan LoVerso (Inactive)
Reporter:: Brian Lane
Votes:: 6 Vote for this issue
Watchers:: 22 Start watching this issue

Created:: Jun 15 2020 06:36:32 AM UTC
Updated:: Mar 22 2024 05:29:17 PM UTC
Resolved:: Aug 06 2020 06:25:22 PM UTC