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AcctIdx: report disk bucket stats (#20120)

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This commit is contained in:
Jeff Washington (jwash)
2021-09-22 18:17:20 -05:00
committed by GitHub
parent f7eebadbed
commit 476124de50
2 changed files with 99 additions and 9 deletions
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24
bucket_map/src/bucket_storage.rs
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@ -251,7 +251,7 @@ impl BucketStorage {
capacity_pow2: u8,
stats: &mut Arc<BucketStats>,
) -> (MmapMut, PathBuf) {
let mut m0 = Measure::start("");
let mut measure_new_file = Measure::start("measure_new_file");
let capacity = 1u64 << capacity_pow2;
let r = thread_rng().gen_range(0, drives.len());
let drive = &drives[r];
@ -280,16 +280,22 @@ impl BucketStorage {
.unwrap();
data.write_all(&[0]).unwrap();
data.seek(SeekFrom::Start(0)).unwrap();
m0.stop();
let mut m1 = Measure::start("");
measure_new_file.stop();
let mut measure_flush = Measure::start("measure_flush");
data.flush().unwrap(); // can we skip this?
m1.stop();
let mut m2 = Measure::start("");
measure_flush.stop();
let mut measure_mmap = Measure::start("measure_mmap");
let res = (unsafe { MmapMut::map_mut(&data).unwrap() }, file);
m2.stop();
stats.new_file_us.fetch_add(m0.as_us(), Ordering::Relaxed);
stats.flush_file_us.fetch_add(m0.as_us(), Ordering::Relaxed);
stats.mmap_us.fetch_add(m0.as_us(), Ordering::Relaxed);
measure_mmap.stop();
stats
.new_file_us
.fetch_add(measure_new_file.as_us(), Ordering::Relaxed);
stats
.flush_file_us
.fetch_add(measure_flush.as_us(), Ordering::Relaxed);
stats
.mmap_us
.fetch_add(measure_mmap.as_us(), Ordering::Relaxed);
res
}