$ time /usr/bin/python2.6 ./psem_example.py 2>&1 | tee log
Do you really want to run test using 16 1MB log files ? Y/Ny
generating files 0..15
generating file 0
generating file 1
generating file 2
generating file 3
generating file 4
generating file 5
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.783862 s, 1.3 MB/s
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.890675 s, 1.1 MB/s
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.831693 s, 1.2 MB/s
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.84914 s, 1.2 MB/s
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.885601 s, 1.1 MB/s
generating file 6
generating file 7
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.942455 s, 1.1 MB/s
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.282143 s, 3.5 MB/s
generating file 8
generating file 9
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.41776 s, 2.4 MB/s
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.292488 s, 3.4 MB/s
generating file 10
generating file 11
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.396643 s, 2.5 MB/s
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.2736 s, 3.7 MB/s
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.316026 s, 3.2 MB/s
generating file 12
generating file 13
generating file 14
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.349368 s, 2.9 MB/s
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.364177 s, 2.7 MB/s
generating file 15
compressing files 0..15
compressing file 0
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.495831 s, 2.0 MB/s
1+0 records in
1+0 records out
1000000 bytes (1.0 MB) copied, 0.229301 s, 4.4 MB/s
compressing file 1
compressing file 2
compressing file 3
compressing file 4
compressing file 5
compressing file 6
compressing file 7
compressing file 8
compressing file 9
compressing file 10
compressing file 11
compressing file 12
compressing file 13
compressing file 14
compressing file 15

real    0m10.700s
user    0m7.987s
sys     0m5.130s