No Trace output

[mayank-kabra2001]

          Hi, I have used this sample blkparse output and parameters but the output stats still shows nothing. 

Is there an issue with trace file? Do I have to make it large enough ?

Following is the output.
********** Begin of simulation **********
0: info: SIL::None::Driver: Total SSD capacity: 412316860416 bytes
0: info: SIL::None::Driver: Logical Page Size: 32768 bytes
0: warn: No I/O submitted. Check regular expression.

Originally posted by @mayank-kabra2001 in #8 (comment)