From: Oscar Garcia <oscar@softlab.cs.tsukuba.ac.jp>
To: kvm@vger.kernel.org
Subject: VMEXIT and Threads
Date: Mon, 06 Oct 2014 13:45:24 +0900 [thread overview]
Message-ID: <54321E64.8070306@softlab.cs.tsukuba.ac.jp> (raw)
Hello,
I have a question about parallel vmexit calls, I would appreciate any
answer or suggestion.
I have a host with debian 7 (intel i7 - RAM 8GB), the guest OS is also
debian. I am running a program with some threads, every thread makes a
vmexit call. Also every thread runs in a isolated vcpu. The problem is
that the program does not run fluently, it looks like that every thread
interfere with each other. This situation does not happen when
separately processes call vmexit simultaneously. The question is: there
is any restriction (any lock) that block the threads. I am not sure
maybe libc, RCU, on even Qemu and KVM?
Thank you
Oscar Gracia
next reply other threads:[~2014-10-06 4:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-06 4:45 Oscar Garcia [this message]
2014-10-06 6:51 ` VMEXIT and Threads Paolo Bonzini
2014-10-06 7:29 ` Jan Kiszka
2014-10-06 19:07 ` Marcelo Tosatti
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