* use sync.pool for session
* added back to sync pool
* reverted change
* added a new line
* added back session object
* added back session object
* added back session object
* revert
* refactored into function
* added the session object back into the pool
* work in progress
* work in progress
* work in progress
* code review comments
Co-authored-by: Arjuna Marambe <arjunam@buildxact.com>
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
* format using `goimports -local github.com/mattermost/mattermost-server/v5 -w`
* added goimports lint check to .golangci.yml
* format using `goimports -local github.com/mattermost/mattermost-server/v5 -w` for a corner case
* make app-layers, *-mocks and store-layers for ci check
Co-authored-by: Mahmudul Haque <mahmudulhaque@protonmail.com>
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
* MM-30863: Fix race in LRU
After shortening the critical section, we missed out the fact
that the byte slice is still accessible after the element is returned.
So the lock needs to be active until the byte slice is fully read and
unmarshaled
https://mattermost.atlassian.net/browse/MM-30863
```release-note
NONE
```
* incorporate suggestions
Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
* MM-29980: Optimize profilesInChannels cache to fast path
We add one more message type to the fast path- profiles in channels. There
are 2 primary reasons for this:
- This is not really a new model type, but just a map of users. And users already use
the fast path. So we can get some more gains without really investing much more code.
- A more important reason is that with the upcoming striped mutex changes, we will get
a higher throughput at the cost of a bit more CPU utilization. The reason being that
since less amount of time will be spent in lock-contention, the CPU is free to do more
stuff. So this change is to counter that increase.
As usual, this gives much better performance than the original decoder.
Micro-benchmark results
```
name old time/op new time/op delta
LRU/UserMap=new-8 16.6µs ± 3% 3.9µs ± 4% -76.15% (p=0.000 n=10+10)
name old alloc/op new alloc/op delta
LRU/UserMap=new-8 4.78kB ± 0% 2.74kB ± 0% -42.65% (p=0.000 n=10+10)
name old allocs/op new allocs/op delta
LRU/UserMap=new-8 38.0 ± 0% 30.0 ± 0% -21.05% (p=0.000 n=10+10)
```
https://mattermost.atlassian.net/browse/MM-29980
Here are some results from a load test. The comparison is done with a 2 node cluster; one running master
and one running with this patch so that it's easier to compare. The total users are 2000.
<See PR>
```release-note
NONE
```
* Fix gofmt
* Trigger CI
