using -XX:-UseCompilerSafepoints

[Deneau, Tom]

I noticed using -f 0 with -XX:-UseCompilerSafepoints does not hang.

-- Tom


-----Original Message-----
From: Aleksey Shipilev [mailto:aleksey.shipilev at oracle.com] 
Sent: Monday, November 10, 2014 1:13 PM
To: Deneau, Tom; jmh-dev at openjdk.java.net
Subject: Re: using -XX:-UseCompilerSafepoints

On 11/10/2014 10:05 PM, Deneau, Tom wrote:
> I wanted to test the effect of the CompilerSafepoints poll instruction 
> on a doNothing loop.  But when I tried this, the first warmup 
> iteration (supposed to be 1 second) never returned.  I am using 
> forking.  so something like -f 1 -jvmPrependArgs 
> "-XX:-UseCompilerSafepoints"
> 
> Is this combination legal?

JMH usage seems legal.

I wonder if your code is stuck in the infinite loop somewhere with -XX:-UseCompilerSafepoints.

-Aleksey.