Date: Fri, 14 Aug 2015 03:16:21 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 168298] VirtualBox using AIO on a zvol crashes Message-ID: <bug-168298-8-xat2UHFeuf@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-168298-8@https.bugs.freebsd.org/bugzilla/> References: <bug-168298-8@https.bugs.freebsd.org/bugzilla/>
next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=168298 rozhuk.im@gmail.com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rozhuk.im@gmail.com --- Comment #3 from rozhuk.im@gmail.com --- To fix tune AIO. Add to /etc/sysctl.conf # AIO: Async IO management vfs.aio.target_aio_procs=4 # Preferred number of ready kernel threads for async IO vfs.aio.max_aio_procs=4 # Maximum number of kernel threads to use for handling async IO vfs.aio.aiod_lifetime=30000 # Maximum lifetime for idle aiod vfs.aio.aiod_timeout=10000 # Timeout value for synchronous aio operations vfs.aio.max_aio_queue=65536 # Maximum number of aio requests to queue, globally vfs.aio.max_aio_queue_per_proc=65536 # Maximum queued aio requests per process (stored in the process) vfs.aio.max_aio_per_proc=8192 # Maximum active aio requests per process (stored in the process) vfs.aio.max_buf_aio=8192 # Maximum buf aio requests per process (stored in the process) default values: vfs.aio.max_aio_queue: 1024 vfs.aio.max_aio_queue_per_proc: 256 to small, and some times queue in vbox > 256 and then vbox fail -- You are receiving this mail because: You are the assignee for the bug.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-168298-8-xat2UHFeuf>