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Code Issues 1 Pull Requests 2 Actions Releases 69 Wiki Activity

Reads do not have to wait for buffer flushes anymore

fsync-feedback
Vitaliy Filippov 2023-08-19 11:09:52 +03:00
parent 33950c1ec8
commit 27d0d5b06a
1 changed files with 2 additions and 18 deletions
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20
src/cluster_client.cpp
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@ -176,21 +176,7 @@ void cluster_client_t::calc_wait(cluster_op_t *op)
}
else /* if (op->opcode == OSD_OP_READ || op->opcode == OSD_OP_READ_BITMAP || op->opcode == OSD_OP_READ_CHAIN_BITMAP) */
{
for (auto prev = op_queue_head; prev && prev != op; prev = prev->next)
{
if (prev->opcode == OSD_OP_WRITE && (prev->flags & OP_FLUSH_BUFFER))
{
op->prev_wait++;
}
else if (prev->opcode == OSD_OP_WRITE || prev->opcode == OSD_OP_READ ||
prev->opcode == OSD_OP_READ_BITMAP || prev->opcode == OSD_OP_READ_CHAIN_BITMAP)
{
// Flushes are always in the beginning (we're scanning from the beginning of the queue)
break;
}
}
if (!op->prev_wait)
continue_rw(op);
continue_rw(op);
}
}
@ -202,9 +188,7 @@ void cluster_client_t::inc_wait(uint64_t opcode, uint64_t flags, cluster_op_t *n
{
auto n2 = next->next;
if (next->opcode == OSD_OP_SYNC && !(flags & OP_IMMEDIATE_COMMIT) ||
next->opcode == OSD_OP_WRITE && (flags & OP_FLUSH_BUFFER) && !(next->flags & OP_FLUSH_BUFFER) ||
(next->opcode == OSD_OP_READ || next->opcode == OSD_OP_READ_BITMAP ||
next->opcode == OSD_OP_READ_CHAIN_BITMAP) && (flags & OP_FLUSH_BUFFER))
next->opcode == OSD_OP_WRITE && (flags & OP_FLUSH_BUFFER) && !(next->flags & OP_FLUSH_BUFFER))
{
next->prev_wait += inc;
assert(next->prev_wait >= 0);