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UTSASRG / Scaler

GNU General Public License v2.0
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Achieve constant memory bound #73

Closed GammaPi closed 1 year ago

GammaPi commented 2 years ago

Currently, context in thread local storage is not freed upon program exits. This cause us not able to claim constant memory bound.

I think the context can be freed easily in new version because I was able to add a TLS check in FGDS module.

GammaPi commented 2 years ago

The current experiments report non-constant memory bound for different running time. A possible reason is memory usage for mysql itself is not constant. Another reason is Scaler memory usage is not constant. We could use an experiment for mysql without Scaler to prove this.

image

The time increase leads to ~2.94% memory increase

GammaPi commented 2 years ago

Changing runtime seems to be not a good way to perform this experiment. image

Perf's memory overhead collection looks suspicious. But the calculation method is correct.

GammaPi commented 1 year ago

Already fixed in previous versions.