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alq666/dropped.sh

Last active April 16, 2016 03:50
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Find drop packets
Raw
dropped.sh
# Place a probe to record calls and return values of enqueue_to_backlog
sudo perf probe -a 'enqueue_to_backlog%return $retval'
# Record for 60 seconds
sudo perf record -e probe:enqueue_to_backlog -aR sleep 60
# Display calls
sudo perf script
Raw
perf-script.log
swapper 0 [000] 3063713.001455: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
swapper 0 [000] 3063713.003087: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
swapper 0 [000] 3063713.003089: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
swapper 0 [000] 3063713.024984: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
swapper 0 [000] 3063713.036451: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
postgres 13545 [000] 3063713.036725: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81627df3) arg1=0
swapper 0 [000] 3063713.037679: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
swapper 0 [000] 3063713.038976: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
swapper 0 [000] 3063713.039360: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
swapper 0 [000] 3063713.040980: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
swapper 0 [000] 3063713.041198: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
postgres 10536 [003] 3063713.046677: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81627df3) arg1=0
swapper 0 [000] 3063713.048121: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
postgres 11707 [000] 3063713.048315: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
swapper 0 [000] 3063713.050607: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
swapper 0 [000] 3063713.053978: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
swapper 0 [000] 3063713.056323: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
swapper 0 [000] 3063713.061861: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
swapper 0 [000] 3063713.064675: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
swapper 0 [000] 3063713.099963: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
swapper 0 [000] 3063713.100650: probe:enqueue_to_backlog: (ffffffff81625030 <- ffffffff81628b7e) arg1=0
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