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os/bluestore/BlueStore: add perfcoutner:l_bluestore_write_penalty_read_ops

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For write, because the align requirement it maybe need read data.
Using this perfcounter to record the read ops.

Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>
This commit is contained in:
Jianpeng Ma 2016-06-07 00:31:02 +08:00
parent f8b7eb980d
commit 189c8f190b
2 changed files with 4 additions and 0 deletions
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3
src/os/bluestore/BlueStore.cc
View File

@ -1061,6 +1061,7 @@ void BlueStore::_init_logger()
b.add_u64(l_bluestore_write_pad_bytes, "write_pad_bytes", "Sum for write-op padded bytes");
b.add_u64(l_bluestore_wal_write_ops, "wal_write_ops", "Sum for wal write op");
b.add_u64(l_bluestore_wal_write_bytes, "wal_write_bytes", "Sum for wal write bytes");
b.add_u64(l_bluestore_write_penalty_read_ops, " write_penalty_read_ops", "Sum for write penalty read ops");
logger = b.create_perf_counters();
g_ceph_context->get_perfcounters_collection()->add(logger);
}
@ -5595,6 +5596,7 @@ void BlueStore::_do_write_small(
b_len += head_read;
head_bl.claim_append(padded);
padded.swap(head_bl);
logger->inc(l_bluestore_write_penalty_read_ops);
}
if (tail_read) {
bufferlist tail_bl;
@ -5608,6 +5610,7 @@ void BlueStore::_do_write_small(
padded.append_zero(zlen);
logger->inc(l_bluestore_write_pad_bytes, zlen);
}
logger->inc(l_bluestore_write_penalty_read_ops);
}
}

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

@ -58,6 +58,7 @@ enum {
l_bluestore_write_pad_bytes,
l_bluestore_wal_write_ops,
l_bluestore_wal_write_bytes,
l_bluestore_write_penalty_read_ops,
l_bluestore_last
};