[aarch64-port-dev ] Question about ISB usage in the aarch64 port

[Andrew Haley]

On 11/29/19 8:06 AM, Yangfei (Felix) wrote:
> Not yet.  It triggers randomly which makes it hard to narrow down the root cause.  
> Suggestions are welcome  :-)  

I'd set things up to deoptimize and recompile continually, thrashing
the life out of the code cache. Run many Java threads. If the problem
really is recompilation you'll see it.

That is always my recommendation: if you have a bug to diagnose, do
everything you can to make the bug worse.

-- 
Andrew Haley  (he/him)
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
https://keybase.io/andrewhaley
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