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42BV / spring-boot-docker-postgres

Spring Boot Docker project for running the Postgres container

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Docker v1.12.1+ has severe Mac performance issues

robert-bor opened this issue · comments

commented

Terence found out that Docker for Mac has severe performance hits for DB2:

docker/for-mac#668

This is also the case for Postgres.

On applying the following patch to the database driver, the problem dissipates: https://gist.github.com/mkrakauer-rio/e7d9de75f5ac680e790365748ca188a4

cd ~/Library/Containers/com.docker.docker/Data/database/
git reset --hard
cat com.docker.driver.amd64-linux/disk/full-sync-on-flush
# if you see true, continue
echo false > com.docker.driver.amd64-linux/disk/full-sync-on-flush
cat com.docker.driver.amd64-linux/disk/full-sync-on-flush
# you should now see false
git add com.docker.driver.amd64-linux/disk/full-sync-on-flush
git commit -s -m "Disable flushing"
# wait for docker to restart

Unit test truncation now works about five times faster. Truncate table cascade even about ten times faster.

commented

With the upgrade to Docker for Mac 17.03.0-ce, the patch described above is reverted automatically. It does not seem possible to reinstate it. This means that the problem with slow Docker runs has returned.