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virt IO perf - Coggle Diagram
virt IO perf
Virtualizations
vmware
io emulation
aio?
linux aio
pthreaded aio
dio or buffered io
io jobs?
io backend
qemu
io emulation
ideas
pti
per syscall
guest is same
how to root cause
trace in host side
trace io pattern
observe if virt IO pattern is same
io_pattern.bt
need FS level trace?
trace cpu utilization
trace pwrite() latency
guest
workload
hammerdb over DB2
NOPM
TPM
host
how is VM setup
how is virtio-scsi emulated?