emo/thin-provisioning-tools
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[all (rust)] Make sync-io the default

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Multithreaded sync-io has performance similar to async-io. Also,
sync-io saves the hassle of setting ulimits to get io_uring working
on some systems (commit ba7fd7b). Now we default to sync-io, and
leave async-io as a hidden option for testing and benchmarking.
This commit is contained in:
Ming-Hung Tsai
2021-06-23 11:40:12 +08:00
parent 361d19adaa
commit cd48f00191
6 changed files with 41 additions and 35 deletions
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21
src/bin/thin_check.rs
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@ -16,6 +16,12 @@ fn main() {
let parser = App::new("thin_check")
.version(thinp::version::tools_version())
.about("Validates thin provisioning metadata on a device or file.")
.arg(
Arg::with_name("ASYNC_IO")
.help("Force use of io_uring for synchronous io")
.long("async-io")
.hidden(true),
)
.arg(
Arg::with_name("QUIET")
.help("Suppress output messages, return only exit code.")
@ -66,16 +72,6 @@ fn main() {
.help("Specify the input device to check")
.required(true)
.index(1),
)
.arg(
Arg::with_name("ASYNC_IO")
.help("Force use of io_uring for asynchronous IO")
.long("async-io"),
)
.arg(
Arg::with_name("SYNC_IO")
.help("Force use of synchronous IO (currently the default)")
.long("sync-io"),
);
let matches = parser.get_matches();
@ -96,11 +92,6 @@ fn main() {
report = Arc::new(mk_simple_report());
}
if matches.is_present("SYNC_IO") && matches.is_present("ASYNC_IO") {
eprintln!("--sync-io and --async-io may not be used at the same time.");
process::exit(1);
}
let engine: Arc<dyn IoEngine + Send + Sync>;
if matches.is_present("ASYNC_IO") {