the latest release is very slow

[bagafoot]

I'm using pg_activity 2.2.1 release, when scroll up/down its response quite slow compared to previous releases.
It is not big deal but a little bit annoying.

[dlax]

Which previous release(s) do you compare to?

[bagafoot]

1.5

[dpiscitelli]

Hello,

Sadly, I have to confirm this point, slower than 1.6 in my environments

[blogh]

Hi,

Reproduced with :

pgbench -i bench
pgbench -c 90 -T 300 bench

I compared 1.6 and master and observed that :

• Scrolling down is slower (from line to line)
• A long press on the down key locks the UI in the "scroll down animation"
• When reaching the last line of a page the cursor disappears for a while before appearing again a the top of the screen.

@dpiscitelli @bagafoot : does it match what you experienced ? did you see more problems ?

[dpiscitelli]

@blogh That's it
To be honest, I didn't experienced others problems because I rollbacked to an older version in production... it was too unusable

[blogh]

Note: refresh rate doesn't seem to be a factor with this. (tried from 0.5s to 5s without significant difference)

[bagafoot]

Hi,

Reproduced with :

pgbench -i bench
pgbench -c 90 -T 300 bench

I compared 1.6 and master and observed that :

• Scrolling down is slower (from line to line)
• A long press on the down key locks the UI in the "scroll down animation"
• When reaching the last line of a page the cursor disappears for a while before appearing again a the top of the screen.

@dpiscitelli @bagafoot : does it match what you experienced ? did you see more problems ?

yeess, here the same

[blogh]

With the PR #247, scrolling should work properly.
I think I found why it's slow and will address it in a separate PR.

Note: In pause everything is now paused : #248

[blogh]

The performance should be better with #249.
There is still a bug related to scrolling with wrapping / ident + wrapping.

[dlax]

I think we can close this issue as performance problems have been resolved. The scrolling issues will be tracked in #260.