[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-discuss] How can I make serial port redirected to file use lin
Dale R. Worley
Re: [Qemu-discuss] How can I make serial port redirected to file use line buffering?
Wed, 11 Feb 2015 21:31:56 -0500
"Priedhorsky, Reid" <address@hidden> writes:
> I believe this is causing boot performance problems, as boot is much
> faster with these files on some filesystems rather than
> others. Therefore, I'd like to use line buffering instead, to reduce
> the number of writes to disk. How can I do this?
I'd be surprised if this is the fundamental performance problem, because
though the qemu process is writing to the files in an unbuffered way,
the host kernel's disk buffering should be writing whole blocks to the
disk if the serial port is producing data at any significant rate.