4. Detailed look a 3 of 60 drives
disk
s2b1/sdn
(low)
s3b1/sdd
(ave)
s3b1/sdp
(high)
trace duration [minutes]
29.2
29.1
29.1
command rate [IOPS]
37.4
52.5
57.9
data transferred [GB]
20.8
23.6
25.9
data throughput [MB/s]
11.9
13.5
14.8
5. swift-bench 20-MiB objects
Sequential Run Counts and Data Transfer Counts by Sequential Run Size
100%
90%
80%
high seq'l run count
90% of the disk ops
move 1% of the data
med. seq'l run count
low seq'l run count
high data xfer count
60%
50%
40%
med. data xfer count
30%
low data xfer count
20%
10%
0.1
1
10
100
1000
Sequential Run Length [KiB]
10000
0%
100000
Cumulative Portion
70%
6. swift-bench 20-MiB objects
Sequential Run Counts and Data Transfer Counts by Sequential Run Size
100%
90%
80%
60%
high seq'l run count
med. seq'l run count
50%
low seq'l run count
high data xfer count
40%
med. data xfer count
30%
low data xfer count
20%
10%
0.1
1
10
100
1000
Sequential Run Length [KiB]
10000
0%
100000
Cumulative Portion
70%
