Marek Marczykowski
b57b41aafa
dom0: qmemman: Support for maxmem != physical memory ( #235 )
2011-05-12 15:20:26 +02:00
Rafal Wojtczuk
6067be29df
qmemman: add comments, make some identifiers more verbose
2011-05-04 17:58:28 +02:00
Rafal Wojtczuk
18e207cbc5
qmemman: prefix variables read from xenstore with "untrusted_"
...
Additionally move all already existing checks to an already
existing is_meminfo_suspicious procedure.
2011-05-04 17:10:01 +02:00
Rafal Wojtczuk
c411519220
qmemman: do not trim the mem-set value too much
...
We used to mem-set the domain to 0.995*calculated_value; 5 promils of 4GB
is ca 19MB, and it is too visible. Use 0.999 instead of 0.995
2010-09-16 16:40:09 +02:00
Rafal Wojtczuk
e476531b0e
Leave XEN_FREE_MEM_LEFT of Xen free memory.
...
Needed for driver domain, to be able to get contiguous memory for
its drivers.
2010-09-16 15:57:11 +02:00
Rafal Wojtczuk
7545789a26
qmemman: now parse_meminfo takes a single argument
2010-09-09 11:30:02 +02:00
Rafal Wojtczuk
9c609a23bf
qmemman: move /proc/meminfo parsing to qmemman_algo
...
Just cosmetics, to make code layout more coherent.
2010-09-09 11:24:04 +02:00
Rafal Wojtczuk
24b3baf063
qmemman: use 'Memtotal' from /proc/meminfo to calculate used memory
...
Previously, memory_actual (retrieved from xen) was used; it can be inconsistent.
'Memtotal' can be spoofed, but anyway we rely on other fields from /proc/meminfo.
2010-09-09 11:08:20 +02:00
Rafal Wojtczuk
87d1e973c7
qmemman: print balance stats only when updating
2010-09-09 10:29:35 +02:00
Rafal Wojtczuk
10408d61db
qmemman: when low on memory, do not make a VM go below prefmem
...
Now the balance() has two different cases: enough memory and low_on_memory.
In the former, distribute memory proportianally; in the former, dont do this, as this
makes a VM go below prefmem.
2010-09-01 12:40:02 +02:00
Rafal Wojtczuk
62487c0f1e
Memory management across VMs, first release
2010-08-30 11:40:19 +02:00
