Re: JIT debugging (Attach and speed)

Pedro Alves
2016-03-23T19:48:53Z

On 03/23/2016 07:32 PM, Yichao Yu wrote:

>> So, as a quick hack, if you make inline_frame_sniffer bail out early
>> with 0, does it improve things?
>

> The timing looks the same. =(

Bummer. :-/

Having now looked at the gdb.base/jit.exp test, I see that
we can easily reproduce this with:

gdb ---args ./testsuite/outputs/gdb.base/jit/jit-main ./testsuite/outputs/gdb.base/jit/jit-solib.so 2000

(It'd be nice to turn this into a check-perf test...)

> What do you mean by "loader"? since you mentioned call JIT_REGISTER I
> assume you mean JIT compiler?

Yes, sorry. I meant whatever code ends up "sending" a JIT_REGISTER
event to gdb.

Thanks,
Pedro Alves