hmz007
36ed224bac
Signed-off-by: hmz007 <hmz007@gmail.com> Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
21 lines
675 B
Plaintext
21 lines
675 B
Plaintext
Examples of urandomread.py, the Linux eBPF/bcc version.
|
|
|
|
|
|
To demonstrate this, the following workload was issued:
|
|
|
|
# dd if=/dev/urandom of=/dev/null bs=1k count=5
|
|
|
|
While urandomread.py was tracing in another session:
|
|
|
|
# ./urandomread.py
|
|
TIME(s) COMM PID GOTBITS
|
|
22592556.392825000 dd 14228 8192
|
|
22592556.392949000 dd 14228 8192
|
|
22592556.393068999 dd 14228 8192
|
|
22592556.393183999 dd 14228 8192
|
|
22592556.393298000 dd 14228 8192
|
|
|
|
The GOTBITS of 8192 matches the workload of 1 Kbyte (8 Kbit) reads.
|
|
|
|
This program was really written as a simple example of tracing a tracepoint.
|