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perf(computes): the host's info is read once per request

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The overview read the host's info four times, now once (12 libvirt calls).
A connection object keeps it next to the capabilities, and the VM page and
VM stats take it from there; the VM page's cached_reads block holds only
the VM's own data. Free memory is still read each time.
This commit is contained in:
catborise 2026-10-09 15:52:11 +03:00
parent 9adc808d26
commit 57f592df70
6 changed files with 57 additions and 32 deletions
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8
vrtManager/hostdetails.py
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@ -34,7 +34,7 @@ class wvmHostDetails(wvmConnect):
"""
Function return memory usage on node.
"""
all_mem = self.wvm.getInfo()[1] * 1048576
all_mem = self.host_info[1] * 1048576
freemem = self.wvm.getMemoryStats(-1, 0)
if isinstance(freemem, dict):
free = (freemem["buffers"] + freemem["free"] + freemem["cached"]) * 1024
@ -78,9 +78,9 @@ class wvmHostDetails(wvmConnect):
Function return host server information: hostname, cpu, memory, ...
"""
info = [self.wvm.getHostname()] # hostname
info.append(self.wvm.getInfo()[0]) # architecture
info.append(self.wvm.getInfo()[1] * 1048576) # memory
info.append(self.wvm.getInfo()[2]) # cpu core count
info.append(self.host_info[0]) # architecture
info.append(self.host_info[1] * 1048576) # memory
info.append(self.host_info[2]) # cpu core count
info.append(
get_xml_path(self.wvm.getSysinfo(0), func=cpu_version)
) # cpu version