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24b3baf063
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10 Commits

Author SHA1 Message Date
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
5a33ed71ce qmemman: use the fact that balloon driver retries 
Apparently even if there is not enough xen memory to balloon up,
balloon driver will try to fulfill the request later, when
some memory is freed. Thus, in do_balloon, do not limit mem_set
to the available memory.
 2010-09-09 10:36:13 +02:00
Rafal Wojtczuk
87d1e973c7 qmemman: print balance stats only when updating 2010-09-09 10:29:35 +02:00
Rafal Wojtczuk
5be12f8459 qmemman: switch off memory balancing when doing xm save 
Apparently, it interferes:
INFO (XendCheckpoint:417) ERROR Internal error: Could not get vcpu context
INFO (XendCheckpoint:417) ERROR Internal error: Failed to map/save the p2m frame list
 2010-09-07 16:00:14 +02:00
Rafal Wojtczuk
11abef3439 qmemman: xc.domain_set_target_mem can throw exceptions, too 2010-09-07 13:10:48 +02:00
Rafal Wojtczuk
7dcb7cb196 qmemman: don't use xenapi, use hypercalls to do mem-set 2010-09-03 16:19:48 +02:00
Rafal Wojtczuk
80771763cf qmemman: limit total memory transfer, not each one 2010-09-01 10:39:39 +02:00
Rafal Wojtczuk
c66e0848f3 qmemman: limit domain memory to 2G to workaround for xen xml-rpc limitation 
File "/usr/lib64/python2.6/xmlrpclib.py", line 710, in dump_int
    raise OverflowError, "int exceeds XML-RPC limits"
OverflowError: int exceeds XML-RPC limits
How crappy.
 2010-08-31 16:19:01 +02:00
Rafal Wojtczuk
de2619fbed qmemman: wrap xenapi.memset within try/except 
It can fail e.g. when a domain is being shutdown with a pretty
message like
 File "/usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", line 1322, in setMemoryTarget
    (target * 1024))
Error: (1, 'Operation not permitted')
 2010-08-31 15:53:24 +02:00
Rafal Wojtczuk
62487c0f1e Memory management across VMs, first release 2010-08-30 11:40:19 +02:00