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perf(console): a serial console asks for its VM's state once a second

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Its worker asked libvirt for the VM's state five times a second, up to
100 calls a second with 20 consoles open, only to notice a start or a
stop. Once a second is enough: output and keys do not wait for it.
This commit is contained in:
catborise 2026-11-05 18:39:41 +03:00
parent 51aa712802
commit 34dd61c80c
1 changed files with 3 additions and 1 deletions
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4
conf/daemon/consolecallback
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@ -133,8 +133,10 @@ def main():
libvirt.virEventAddHandle(0, libvirt.VIR_EVENT_HANDLE_READABLE, from_client, console) libvirt.virEventAddHandle(0, libvirt.VIR_EVENT_HANDLE_READABLE, from_client, console)
checked = time.monotonic() checked = time.monotonic()
try: try:
# a VM's start or stop shows within a second; its output and the
# user's keys travel through libvirt's event loop, not this one
while console.running: while console.running:
time.sleep(0.2) time.sleep(1)
console.check() console.check()
if time.monotonic() - checked > ACCESS_CHECK: if time.monotonic() - checked > ACCESS_CHECK:
if not may_still_open(user_id, instance): if not may_still_open(user_id, instance):