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Add min_flusher_count configuration

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This commit is contained in:
Vitaliy Filippov
2021-04-03 00:53:28 +03:00
parent ad9f619370
commit 8f8b90be7a
7 changed files with 28 additions and 20 deletions
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src/blockstore_flush.cpp
+11 -10
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@@ -3,12 +3,13 @@
#include "blockstore_impl.h"
journal_flusher_t::journal_flusher_t(int flusher_count, blockstore_impl_t *bs)
journal_flusher_t::journal_flusher_t(blockstore_impl_t *bs)
{
this->bs = bs;
this->flusher_count = flusher_count;
this->cur_flusher_count = 1;
this->target_flusher_count = 1;
this->max_flusher_count = bs->max_flusher_count;
this->min_flusher_count = bs->min_flusher_count;
this->cur_flusher_count = bs->min_flusher_count;
this->target_flusher_count = bs->min_flusher_count;
dequeuing = false;
trimming = false;
active_flushers = 0;
@@ -19,8 +20,8 @@ journal_flusher_t::journal_flusher_t(int flusher_count, blockstore_impl_t *bs)
journal_trim_counter = 0;
trim_wanted = 0;
journal_superblock = bs->journal.inmemory ? bs->journal.buffer : memalign_or_die(MEM_ALIGNMENT, bs->journal_block_size);
co = new journal_flusher_co[flusher_count];
for (int i = 0; i < flusher_count; i++)
co = new journal_flusher_co[max_flusher_count];
for (int i = 0; i < max_flusher_count; i++)
{
co[i].bs = bs;
co[i].flusher = this;
@@ -71,10 +72,10 @@ bool journal_flusher_t::is_active()
void journal_flusher_t::loop()
{
target_flusher_count = bs->write_iodepth*2;
if (target_flusher_count <= 0)
target_flusher_count = 1;
else if (target_flusher_count > flusher_count)
target_flusher_count = flusher_count;
if (target_flusher_count < min_flusher_count)
target_flusher_count = min_flusher_count;
else if (target_flusher_count > max_flusher_count)
target_flusher_count = max_flusher_count;
if (target_flusher_count > cur_flusher_count)
cur_flusher_count = target_flusher_count;
else if (target_flusher_count < cur_flusher_count)