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test_infra: Add helper function to parse fio output for IOPS

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Signed-off-by: Bo Chen <chen.bo@intel.com>
This commit is contained in:
Bo Chen 2022-08-29 17:54:26 -07:00 committed by Rob Bradford
parent 652aa39934
commit af0a01c2fb
1 changed files with 56 additions and 0 deletions
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56
test_infra/src/lib.rs
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@ -1440,6 +1440,62 @@ pub fn parse_fio_output(output: &str, fio_ops: &FioOps, num_jobs: u32) -> Result
})
}
pub fn parse_fio_output_iops(output: &str, fio_ops: &FioOps, num_jobs: u32) -> Result<f64, Error> {
std::panic::catch_unwind(|| {
let v: Value =
serde_json::from_str(output).expect("'fio' parse error: invalid json output");
let jobs = v["jobs"]
.as_array()
.expect("'fio' parse error: missing entry 'jobs'");
assert_eq!(
jobs.len(),
num_jobs as usize,
"'fio' parse error: Unexpected number of 'fio' jobs."
);
let (read, write) = match fio_ops {
FioOps::Read | FioOps::RandomRead => (true, false),
FioOps::Write | FioOps::RandomWrite => (false, true),
FioOps::ReadWrite | FioOps::RandRW => (true, true),
};
let mut total_iops = 0_f64;
for j in jobs {
if read {
let ios = j["read"]["total_ios"]
.as_u64()
.expect("'fio' parse error: missing entry 'read.total_ios'");
let runtime = j["read"]["runtime"]
.as_u64()
.expect("'fio' parse error: missing entry 'read.runtime'")
as f64
/ 1000_f64;
total_iops += ios as f64 / runtime as f64;
}
if write {
let ios = j["write"]["total_ios"]
.as_u64()
.expect("'fio' parse error: missing entry 'write.total_ios'");
let runtime = j["write"]["runtime"]
.as_u64()
.expect("'fio' parse error: missing entry 'write.runtime'")
as f64
/ 1000_f64;
total_iops += ios as f64 / runtime as f64;
}
}
total_iops
})
.map_err(|_| {
eprintln!(
"=============== Fio output ===============\n\n{}\n\n===========end============\n\n",
output
);
Error::FioOutputParse
})
}
// Wait the child process for a given timeout
fn child_wait_timeout(child: &mut Child, timeout: u64) -> Result<(), WaitTimeoutError> {
match child.wait_timeout(Duration::from_secs(timeout)) {