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Merge pull request #22086 from ifed01/wip-ifed-new-bluefs-pcounter

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os/bluestore: introduce new BlueFS perf counter to track the amount of

Reviewed-by: Sage Weil <sage@redhat.com>
This commit is contained in:
Kefu Chai 2018-06-29 20:29:03 +08:00 committed by GitHub
commit a7e175140a
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 10 additions and 0 deletions
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9
src/os/bluestore/BlueFS.cc
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@ -115,6 +115,9 @@ void BlueFS::_init_logger()
b.add_u64_counter(l_bluefs_bytes_written_sst, "bytes_written_sst",
"Bytes written to SSTs", "sst",
PerfCountersBuilder::PRIO_CRITICAL, unit_t(UNIT_BYTES));
b.add_u64_counter(l_bluefs_bytes_written_slow, "bytes_written_slow",
"Bytes written to WAL/SSTs at slow device", NULL,
PerfCountersBuilder::PRIO_USEFUL, unit_t(UNIT_BYTES));
logger = b.create_perf_counters();
cct->get_perfcounters_collection()->add(logger);
}
@ -1763,6 +1766,7 @@ int BlueFS::_flush_range(FileWriter *h, uint64_t offset, uint64_t length)
h->tail_block.clear();
uint64_t bloff = 0;
uint64_t bytes_written_slow = 0;
while (length > 0) {
uint64_t x_len = std::min(p->length - x_off, length);
bufferlist t;
@ -1798,11 +1802,16 @@ int BlueFS::_flush_range(FileWriter *h, uint64_t offset, uint64_t length)
bdev[p->bdev]->aio_write(p->offset + x_off, t, h->iocv[p->bdev], buffered);
}
h->dirty_devs[p->bdev] = true;
if (p->bdev == BDEV_SLOW) {
bytes_written_slow += t.length();
}
bloff += x_len;
length -= x_len;
++p;
x_off = 0;
}
logger->inc(l_bluefs_bytes_written_slow, bytes_written_slow);
for (unsigned i = 0; i < MAX_BDEV; ++i) {
if (bdev[i]) {
assert(h->iocv[i]);

1
src/os/bluestore/BlueFS.h
View File

@ -35,6 +35,7 @@ enum {
l_bluefs_files_written_sst,
l_bluefs_bytes_written_wal,
l_bluefs_bytes_written_sst,
l_bluefs_bytes_written_slow,
l_bluefs_last,
};