Victor Lopez 473b822e0c Linux VM specific: force minimum init mem to allow scaling up memory ... Check init_mem and max_mem_size in a single function (merging the previous two) taking into account the minimum init memory that allows the requested maximum memory. Explanation: Linux kernel needs space for memory-related structures created at boot. If init_mem is just 400MB, then max_mem can't balloon above 4.3GB (at which poing it yields "add_memory() failed: -17" messages and apps crash), regardless of the max_mem_size value. Base of Marek's findings and my tests on a 16GB PC, using several processes like: stress -m 1 --vm-bytes 1g --vm-hang 100 result in the following points: init_mem ==> actual max memory 400 4300 700 7554 800 8635 1024 11051 1200 12954 1300 14038 1500 14045 <== probably capped on my 16GB system The actual ratio of max_mem_size/init_mem is surprisingly constant at 10.79 If less init memory is set than that ratio allows, then the set max_mem_size is unreachable and the VM becomes unstable (app crashes) Based on qubes-devel discussion titled "Qubes Dom0 init memory against Xen best practices?" at: https://groups.google.com/d/msg/qubes-devel/VRqkFj1IOtA/UgMgnwfxVSIJ		2014-10-06 04:00:20 +02:00
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__init__.py	Initial public commit.	2010-05-11 16:54:35 +02:00
.gitignore	gitignore	2012-07-05 00:47:05 +02:00
appmenu_select.py	*.py: Use full paths when calling subprocess.Popen().	2014-05-22 15:07:35 +02:00
backup_utils.py	*.py: Use full paths when calling subprocess.Popen().	2014-05-22 15:07:35 +02:00
backup.py	*.py: Use full paths when calling subprocess.Popen().	2014-05-22 15:07:35 +02:00
block.py	block: fix attaching r/o devices (cdrom for example)	2014-07-08 02:06:35 +02:00
create_new_vm.py	create-vm: Handle the case when no HVM-template exists	2014-06-07 04:40:24 +02:00
firewall.py	firewall: add an option to temporary allow full network access (#760)	2014-03-28 06:41:35 +01:00
global_settings.py	*.py: Use full paths when calling subprocess.Popen().	2014-05-22 15:07:35 +02:00
log_dialog.py	log_dialog: display only last 1MB of log, force it plain text	2014-05-05 02:15:01 +02:00
main.py	use new icon from qubes-artwork	2014-07-09 18:21:56 +02:00
mount_for_backup.sh	Remove trailing semicolons	2014-02-23 00:44:08 +01:00
multiselectwidget.py	Remove trailing semicolons	2014-02-23 00:44:08 +01:00
restore.py	backups/restore: always allow an option to manually unmount storage device	2014-09-26 15:01:37 +02:00
settings.py	Linux VM specific: force minimum init mem to allow scaling up memory	2014-10-06 04:00:20 +02:00
table_widgets.py	use new padlocks from theme	2014-07-10 16:50:29 +02:00
thread_monitor.py	use any python2, not explicit python2.6	2013-01-23 15:55:14 +01:00