Displaying 2 results from an estimated 2 matches for "lat_syscall".
2013 Sep 29
9
DomU vs Dom0 performance.
...performa better than domU, so to debug more into it
I ram lm_bench microbenchmarks.
Experiment 2] bw_mem benchmark
1. ./bw_mem 1000m wr
dom0 output:
1048.58 3640.60
domU output:
1048.58 4719.32
2. ./bw_mem 1000m rd
dom0 output:
1048.58 5780.56
domU output:
1048.58 6258.32
Experiment 3] lat_syscall benchmark
1. ./lat_syscall write
dom0 output:
Simple write: 1.9659 microseconds
domU output :
Simple write: 0.4256 microseconds
2. ./lat_syscall read
dom0 output:
Simple read: 1.9399 microseconds
domU output :
Simple read: 0.3764 microseconds
3. ./lat_syscall stat
dom0 output:
Simple stat:...
2005 Mar 03
14
Serious performance issues
...4
lat_pipe
-Pipe latency: 31.0475 microseconds
+Pipe latency: 5.4833 microseconds
lat_proc
-Process fork+exit: 789.2857 microseconds
+Process fork+exit: 113.7347 microseconds
lat_select
-Select on 200 tcp fd''s: 46.8159 microseconds
+Select on 200 tcp fd''s: 12.9369 microseconds
lat_syscall
-Simple syscall: 0.6188 microseconds
+Simple syscall: 0.1547 microseconds
lat_unix
-AF_UNIX sock stream latency: 61.1547 microseconds
+AF_UNIX sock stream latency: 21.7704 microseconds
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