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April 19, 2019
Gravatar of unDEFERPosted by unDEFERReply
unDEFER
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Hello all!
I just have moved some big data segment to static allocated field.
So I have >64Kb static data.
And profiler shows very big increasing number (in 3 times) of Instruction Fetch on full_collect() method.
More accurately. The problem is in gc.Gcx.mark method, number of instructions of which increased in 8 times.

What happened? The GC is going crazy?
How to avoid it?
April 19, 2019
Gravatar of unDEFERPosted by unDEFER
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unDEFER
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On Friday, 19 April 2019 at 19:22:00 UTC, unDEFER wrote:
> Hello all!
> I just have moved some big data segment to static allocated field.
> So I have >64Kb static data.
> And profiler shows very big increasing number (in 3 times) of Instruction Fetch on full_collect() method.
> More accurately. The problem is in gc.Gcx.mark method, number of instructions of which increased in 8 times.
>
> What happened? The GC is going crazy?
> How to avoid it?

So the problem was that I not all necessary fields made static.. And there was really big memory allocations.