From: Frediano Ziglio <freddy77@gmail.com>
To: aliguori@us.ibm.com, kwolf@redhat.com
Cc: qemu-devel@nongnu.org, Frediano Ziglio <freddy77@gmail.com>
Subject: [Qemu-devel] [PATCH 0/2][RFC?] Remove SIGUSR2 from posix-aio
Date: Mon, 19 Sep 2011 13:54:15 +0200 [thread overview]
Message-ID: <1316433257-4863-1-git-send-email-freddy77@gmail.com> (raw)
Now that iothread is always compiled sending a signal seems only an
additional step. This patch also avoid writing to two pipe (one from signal
and one in qemu_service_io).
Tested and works correctly with KVM enabled. Performances are only sligthly
better (as I expected). strace output is more readable.
Doubts:
- any sense having two patches and not only last one?
- comment is perhaps wrong as is also affect main core
- is ok if KVM is disabled? more testing required
Frediano Ziglio (2):
block: avoid storing a constant in qemu_paiocb structure
block: avoid SIGUSR2
cpus.c | 5 -----
posix-aio-compat.c | 17 ++++-------------
2 files changed, 4 insertions(+), 18 deletions(-)
next reply other threads:[~2011-09-19 11:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-19 11:54 Frediano Ziglio [this message]
2011-09-19 11:54 ` [Qemu-devel] [PATCH 1/2] block: avoid storing a constant in qemu_paiocb structure Frediano Ziglio
2011-09-19 11:54 ` [Qemu-devel] [PATCH 2/2] block: avoid SIGUSR2 Frediano Ziglio
2011-09-19 14:05 ` Stefan Hajnoczi
2011-09-20 18:08 ` Christoph Hellwig
2011-09-19 14:08 ` [Qemu-devel] [PATCH 0/2][RFC?] Remove SIGUSR2 from posix-aio Stefan Hajnoczi
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