[VBox] Why VirtualBox process is so large?
I have the VM that is allocated 512MB of base memory for the guest, but its total memory size on host is 1263MB. This seems excessive. What is the normal memory overhead for the VM? Is there a way to reduce it? Documentation doesn't elaborate on this. virtualbox-4.2.18 9.2 Yuri ___ freebsd-emulation@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-emulation To unsubscribe, send any mail to freebsd-emulation-unsubscr...@freebsd.org
Re: [VBox] Why VirtualBox process is so large?
On Fri, Dec 13, 2013 at 11:02 AM, Yuri y...@rawbw.com wrote: I have the VM that is allocated 512MB of base memory for the guest, but its total memory size on host is 1263MB. This seems excessive. What is the normal memory overhead for the VM? Is there a way to reduce it? Documentation doesn't elaborate on this. virtualbox-4.2.18 9.2 The used RAM is usually VM RAM + GPU RAM + (QT4 GUI) + overhead. How did you measure those 1263MB on the host? -- Bernhard Froehlich http://www.bluelife.at/ ___ freebsd-emulation@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-emulation To unsubscribe, send any mail to freebsd-emulation-unsubscr...@freebsd.org
Re: [VBox] Why VirtualBox process is so large?
On 12/13/2013 04:50, Bernhard Fröhlich wrote: The used RAM is usually VM RAM + GPU RAM + (QT4 GUI) + overhead. How did you measure those 1263MB on the host? This is the total size of the VirtualBox process for the VM, no Qt GUI. I expected it to be somewhat higher than 512MB, but not 2.5 times. Yuri ___ freebsd-emulation@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-emulation To unsubscribe, send any mail to freebsd-emulation-unsubscr...@freebsd.org
Re: [VBox] Why VirtualBox process is so large?
On 12/13/2013 02:02, Yuri wrote: I have the VM that is allocated 512MB of base memory for the guest, but its total memory size on host is 1263MB. This seems excessive. What is the normal memory overhead for the VM? Is there a way to reduce it? Documentation doesn't elaborate on this. 512MB machine looks in ps(1) like this (linux guest): 5717 yuri 21 200 1263M 444M select 0 9:06 88.48% VirtualBox And 1024MB machine looks like this (FreeBSD guest): 13565 yuri 18 200 1720M 1135M uwait 5 71:13 4.05% VirtualBox Process sizes shouldn't be that high in both cases. My guess is that VBox takes freedom to allocate an additional disk cache maybe? Then this should be configurable. What other memory could this be? Leak? As a comparison, VMWare lists the sample overhead memories: http://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vsphere.resmgmt.doc_50%2FGUID-B42C72C1-F8D5-40DC-93D1-FB31849B1114.html For 1GB machine with 1CPU it would be ~26MB. We need to understand why VBox goes so much higher. Yuri ___ freebsd-emulation@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-emulation To unsubscribe, send any mail to freebsd-emulation-unsubscr...@freebsd.org
Re: [VBox] Why VirtualBox process is so large?
Am 13.12.2013 18:13 schrieb Yuri y...@rawbw.com: On 12/13/2013 02:02, Yuri wrote: I have the VM that is allocated 512MB of base memory for the guest, but its total memory size on host is 1263MB. This seems excessive. What is the normal memory overhead for the VM? Is there a way to reduce it? Documentation doesn't elaborate on this. 512MB machine looks in ps(1) like this (linux guest): 5717 yuri 21 200 1263M 444M select 0 9:06 88.48% VirtualBox And 1024MB machine looks like this (FreeBSD guest): 13565 yuri 18 200 1720M 1135M uwait 5 71:13 4.05% VirtualBox Process sizes shouldn't be that high in both cases. My guess is that VBox takes freedom to allocate an additional disk cache maybe? Then this should be configurable. What other memory could this be? Leak? As a comparison, VMWare lists the sample overhead memories: http://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vsphere.resmgmt.doc_50%2FGUID-B42C72C1-F8D5-40DC-93D1-FB31849B1114.html For 1GB machine with 1CPU it would be ~26MB. We need to understand why VBox goes so much higher. This is a bug on your side. Please look at the ps manpage to learn about the different columns and what they mean. ___ freebsd-emulation@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-emulation To unsubscribe, send any mail to freebsd-emulation-unsubscr...@freebsd.org
