[GitHub] [couchdb] nickva commented on pull request #4622: Add QuickJS as a Javascript engine option

["nickva (via GitHub)" <gi...@apache.org>]

nickva commented on PR #4622:
URL: https://github.com/apache/couchdb/pull/4622#issuecomment-1562079877

   **QuickJS**
   
   ```
   ./stampede_dbs_ddocs_vdus.py -x 10 -n 100 -w 20 -t 3  1.10s user 0.22s system 7% cpu 18.754 total
   ./stampede_dbs_ddocs_vdus.py -x 10 -n 100 -w 20 -t 3  1.05s user 0.21s system 6% cpu 18.438 total
   ./stampede_dbs_ddocs_vdus.py -x 10 -n 100 -w 20 -t 3  1.06s user 0.21s system 6% cpu 18.591 total
   ./stampede_dbs_ddocs_vdus.py -x 10 -n 100 -w 20 -t 3  1.06s user 0.20s system 6% cpu 18.279 total
   ./stampede_dbs_ddocs_vdus.py -x 10 -n 100 -w 20 -t 3  1.09s user 0.22s system 6% cpu 18.822 total
   ```
   
   Memory usage 5MB-7MB RSS per couchjs process (based on btop output)
   
   **Spidermonkey 1.8.5**
   
   ```
   ./stampede_dbs_ddocs_vdus.py -x 10 -n 100 -w 20 -t 3  1.33s user 0.25s system 2% cpu 1:06.80 total
   ./stampede_dbs_ddocs_vdus.py -x 10 -n 100 -w 20 -t 3  1.31s user 0.24s system 2% cpu 1:05.80 total
   ./stampede_dbs_ddocs_vdus.py -x 10 -n 100 -w 20 -t 3  1.32s user 0.24s system 2% cpu 1:04.34 total
   ./stampede_dbs_ddocs_vdus.py -x 10 -n 100 -w 20 -t 3  1.31s user 0.23s system 2% cpu 1:03.00 total
   ./stampede_dbs_ddocs_vdus.py -x 10 -n 100 -w 20 -t 3  1.34s user 0.25s system 2% cpu 1:13.93 total
   ```
   
   **Spidermonkey 91**
   
   ```
   ./stampede_dbs_ddocs_vdus.py -x 10 -n 100 -w 20 -t 3  1.11s user 0.21s system 1% cpu 1:31.13 total
   ./stampede_dbs_ddocs_vdus.py -x 10 -n 100 -w 20 -t 3  1.09s user 0.20s system 1% cpu 1:24.22 total
   ./stampede_dbs_ddocs_vdus.py -x 10 -n 100 -w 20 -t 3  1.10s user 0.21s system 1% cpu 1:35.53 total
   ./stampede_dbs_ddocs_vdus.py -x 10 -n 100 -w 20 -t 3  1.06s user 0.20s system 1% cpu 1:20.57 total
   ./stampede_dbs_ddocs_vdus.py -x 10 -n 100 -w 20 -t 3  1.07s user 0.20s system 1% cpu 1:22.06 total
   ```
   
   Memory usage 30-32MB RSS per couchjs process (based on btop output)
   
   
   Runtime metrics capture (also quick and dirty courtesy of btop):
   
   <img width="1052" alt="file1" src="https://github.com/apache/couchdb/assets/211822/aad22ad0-3e96-4aa8-a840-aa8e44288a16">
   <img width="1059" alt="file2" src="https://github.com/apache/couchdb/assets/211822/e9736666-5fee-4ade-b8bb-e8c1f22969b5">
   
   The CPU usage graph is quite telling I think.


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: notifications-unsubscribe@couchdb.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org