Low performance when installing from repo file (requires restart)

[soyacz]

When running running performance test (write) with Scylla installed from repo file, perf is much better if restarting Scylla before workload. E.g. result without restart:

the same test with putting self.db_cluster.restart_scylla() before running write workload:

Possibly, Scylla is not working at best perf in longevities (needs confirmation) when installed from repo file (and not restarted).

[fruch]

isn't that an issue with scylla ?, i.e. that installation of the box behave better after restart ?

[soyacz]

I don't know, I need to reexamine what happens when we install from repo file - if we do proper restarts after io-tune and if our procedure adhere from the official one.

[fruch]

I don't know, I need to reexamine what happens when we install from repo file - if we do proper restarts after io-tune and if our procedure adhere from the official one.

io_properties was overridden in this run ? maybe I've introduced it in the wrong place ? after scylla started ?

[soyacz]

I don't know, I need to reexamine what happens when we install from repo file - if we do proper restarts after io-tune and if our procedure adhere from the official one.

io_properties was overridden in this run ? maybe I've introduced it in the wrong place ? after scylla started ?

when installing from repo we run scylla-setup and io-tune, need to examine, but I'm currently busy with other task - I'll get back to it soon as possible: I need to conclude Z3 tests and make results reproducible by jenkins job.

[fruch]

@soyacz

do we have anything else todo with this one ?

[soyacz]

@soyacz

do we have anything else todo with this one ?

I think it can be closed