[Qemu-devel] blockdev.c - bug

2013-10-14 Thread Edivaldo de Araujo Pereira
Dear qemu developers, I've noticed about 3 days ago a bug, apparently introduced by the last massive modifications in blockdev.c, that prevents the use of a cdrom ISO without write permission, like in "qemu-system-i386 -cdrom /some.iso ...", giving the message "could not open disk image /bpd/b

[Qemu-devel] High memory usage by multiqueue

2013-02-19 Thread Edivaldo de Araujo Pereira
Dear Jason, In the last 2 weeks, I noticed a significant increase in the memory usage of qemu. Just to assess the stability of my system, I usually run a kind of stress test, every time I install a new kernel in my host or in a custom VM that I use in my classes, or when I compile a new snapsho

Re: [Qemu-devel] [PATCH] virtio: limit avail bytes lookahead

2012-11-27 Thread Edivaldo de Araujo Pereira
ael S. Tsirkin escreveu: > De: Michael S. Tsirkin > Assunto: Re: [PATCH] virtio: limit avail bytes lookahead > Para: "Amit Shah" > Cc: "Stefan Hajnoczi" , "Edivaldo de Araujo Pereira" > , qemu-devel@nongnu.org, "Anthony Liguori" > , "

Re: [Qemu-devel] [Bug 1066055] Re: Network performance regression with vde_switch

2012-10-22 Thread Edivaldo de Araujo Pereira
unda-feira, 22 de Outubro de 2012, 4:18 > On (Tue) 16 Oct 2012 [09:48:09], > Stefan Hajnoczi wrote: > > On Mon, Oct 15, 2012 at 09:46:06PM -, Edivaldo de > Araujo Pereira wrote: > > > Hi Stefan, > > > > > > Thank you, very much for taking the time to help &g

[Qemu-devel] [Bug 1066055] Re: Network performance regression with vde_switch

2012-10-16 Thread Edivaldo de Araujo Pereira
ce to manage...), which is quite good when running some accademic experiments. Interestingly, at the same time I've noticed a performance enhancement of about 25~30 % when using a tun/tap interface, bridged or not. Thank you, very much. Edivaldo de Araujo Pereira To manage notifica

[Qemu-devel] [Bug 1066055] Re: Network performance regression with vde_switch

2012-10-15 Thread Edivaldo de Araujo Pereira
get a cleaner environment in the host (just one tun/tap interface to manage...), which is quite good when running some accademic experiments. Interestingly, at the same time I've noticed a performance enhancement of about 25~30 % when using a tun/tap interface, bridged or not.

[Qemu-devel] [Bug 1066055] [NEW] Network performance regression with vde_switch

2012-10-12 Thread Edivaldo de Araujo Pereira
quite good when running some accademic experiments. Interestingly, at the same time I've noticed a performance enhancement of about 25~30 % when using a tun/tap interface, bridged or not. Thank you, very much. Edivaldo de Araujo Pereira ** Affects: qemu Importance: Undecided