blob: d7f769f7f643d57ba026baa391624e49a532dfcc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
#!/bin/bash
if [ $# -ne 3 ]; then
echo "Usage: $0 <pid> <snapid1> <snapid2>"
exit 1
fi
PID=$1
SNAP1=$2
SNAP2=$3
A=( `psql --no-align --tuples-only --field-separator ' ' --command "SELECT syscr, syscw, reads, writes, cwrites FROM ps_snaps a, ps_procstat b WHERE pid = ${PID} AND a.snap = b.snap AND a.snap = ${SNAP1}"` )
R1=${A[0]}
W1=${A[1]}
RB1=${A[2]}
WB1=${A[3]}
CWB1=${A[4]}
A=( `psql --no-align --tuples-only --field-separator ' ' --command "SELECT syscr, syscw, reads, writes, cwrites FROM ps_snaps a, ps_procstat b WHERE pid = ${PID} AND a.snap = b.snap AND a.snap = ${SNAP2}"` )
R2=${A[0]}
W2=${A[1]}
RB2=${A[2]}
WB2=${A[3]}
CWB2=${A[4]}
R=$(( ${R2} - ${R1} ))
W=$(( ${W2} - ${W1} ))
RB=$(( ${RB2} - ${RB1} ))
WB=$(( ${WB2} - ${WB1} ))
CWB=$(( ${CWB2} - ${CWB1} ))
echo "Reads = ${R}"
echo "Writes = ${W}"
echo "Reads (Bytes) = ${RB}"
echo "Writes (Bytes) = ${WB}"
echo "Cancelled (Bytes) = ${CWB}"
|
