Posts for: #Qemu

qemu eats up /dev/shm

bartman
#qemu  #linux  #debian 

I’ve been using qemu ([with kqemu]{kqemu-install}) to run my client’s windows software, which talks to the linux driver/daemon that I am working on. Having multiple qemu instances really chews into the shared memory… and the amount available depend on how /dev/shm is mounted.

    # df /dev/shm
    Filesystem            Size  Used Avail Use% Mounted on
    none                  2.0G  713M  1.4G  35% /dev/shm

On Debian you can control this via /etc/default/tmpfs SHM_SIZE variable….

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my kqemu install

bartman
#qemu  #kqemu 

I found out earlier today that kqemu is now GPLed. I think this has the potential of helping out the KVM team by (hopefully) taking some of the tricks that helps kqemu get almost as good performance (on some benchmarks) as KVM w/ the hardware vitualization extensions.

Here I am running Ubuntu (aside: next time I pave over I am going back to Debian), and I want to have kqemu running WinXP and Suse 10. But really… I just wanted to try kqemu on my poor desktop that lacks the virtualization extensions.

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