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1. Re: JBM 2.0 new journal store
slaboure Apr 24, 2008 5:10 PM (in response to timfox)Tim, instead of a small JNI wrapper, would it have been possible to use Mladen's APR-based code that he uses in JBoss Web? Does it provide that feature?
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2. Re: JBM 2.0 new journal store
clebert.suconic Apr 24, 2008 5:20 PM (in response to timfox)It would be possible if we add this code to the APR-based code. But that will be using JNI anyway. If Mladen is opened to add this to the APR-based, maybe it would simplify deployment and binary distribution.
With the AIO work I'm doing, I can max out my disk IO to its limits. I'm calling aio_submit to perform a write call, and I'm using DMA for that. For the max IO I got on my test I used too little of my CPU (30% of a 2 years old Dell D820).
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3. Re: JBM 2.0 new journal store
timfox Apr 24, 2008 5:27 PM (in response to timfox)"clebert.suconic@jboss.com" wrote:
With the AIO work I'm doing, I can max out my disk IO to its limits. I'm calling aio_submit to perform a write call, and I'm using DMA for that. For the max IO I got on my test I used too little of my CPU (30% of a 2 years old Dell D820).
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Yes, this is cool stuff. The performance we are seeing is pretty extra-ordinary. Can't wait until alpha so we can show it to the world :)