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2a8faf79
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rocksdb
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rocksdb
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体验新版 GitCode,发现更多精彩内容 >>
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2a8faf79
编写于
8月 28, 2014
作者:
I
Igor Canadi
浏览文件
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电子邮件补丁
差异文件
Compact SpatialDB as we go, not at the end
上级
7f714483
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
13 addition
and
19 deletion
+13
-19
utilities/spatialdb/spatial_db.cc
utilities/spatialdb/spatial_db.cc
+13
-19
未找到文件。
utilities/spatialdb/spatial_db.cc
浏览文件 @
2a8faf79
...
...
@@ -621,10 +621,13 @@ class SpatialDBImpl : public SpatialDB {
namespace
{
DBOptions
GetDBOptions
(
const
SpatialDBOptions
&
options
)
{
DBOptions
db_options
;
db_options
.
max_background_compactions
=
options
.
num_threads
/
2
;
db_options
.
max_background_flushes
=
options
.
num_threads
/
2
;
db_options
.
env
->
SetBackgroundThreads
(
db_options
.
max_background_compactions
,
Env
::
LOW
);
db_options
.
env
->
SetBackgroundThreads
(
db_options
.
max_background_flushes
,
Env
::
HIGH
);
db_options
.
max_background_compactions
=
3
*
options
.
num_threads
/
4
;
db_options
.
max_background_flushes
=
options
.
num_threads
-
db_options
.
max_background_compactions
;
db_options
.
env
->
SetBackgroundThreads
(
db_options
.
max_background_compactions
,
Env
::
LOW
);
db_options
.
env
->
SetBackgroundThreads
(
db_options
.
max_background_flushes
,
Env
::
HIGH
);
if
(
options
.
bulk_load
)
{
db_options
.
disableDataSync
=
true
;
}
...
...
@@ -634,14 +637,16 @@ DBOptions GetDBOptions(const SpatialDBOptions& options) {
ColumnFamilyOptions
GetColumnFamilyOptions
(
const
SpatialDBOptions
&
options
,
std
::
shared_ptr
<
Cache
>
block_cache
)
{
ColumnFamilyOptions
column_family_options
;
column_family_options
.
write_buffer_size
=
128
*
1024
*
1024
;
// 128MB
column_family_options
.
max_bytes_for_level_base
=
1024
*
1024
*
1024
;
// 1 GB
column_family_options
.
write_buffer_size
=
128
*
1024
*
1024
;
// 128MB
column_family_options
.
max_write_buffer_number
=
4
;
// only compress levels >= 1
column_family_options
.
level0_file_num_compaction_trigger
=
2
;
column_family_options
.
level0_slowdown_writes_trigger
=
16
;
column_family_options
.
level0_slowdown_writes_trigger
=
32
;
// only compress levels >= 2
column_family_options
.
compression_per_level
.
resize
(
column_family_options
.
num_levels
);
for
(
int
i
=
0
;
i
<
column_family_options
.
num_levels
;
++
i
)
{
if
(
i
==
0
)
{
if
(
i
<
2
)
{
column_family_options
.
compression_per_level
[
i
]
=
kNoCompression
;
}
else
{
column_family_options
.
compression_per_level
[
i
]
=
kLZ4Compression
;
...
...
@@ -651,17 +656,6 @@ ColumnFamilyOptions GetColumnFamilyOptions(const SpatialDBOptions& options,
table_options
.
block_cache
=
block_cache
;
column_family_options
.
table_factory
.
reset
(
NewBlockBasedTableFactory
(
table_options
));
if
(
options
.
bulk_load
)
{
column_family_options
.
level0_file_num_compaction_trigger
=
(
1
<<
30
);
column_family_options
.
level0_slowdown_writes_trigger
=
(
1
<<
30
);
column_family_options
.
level0_stop_writes_trigger
=
(
1
<<
30
);
column_family_options
.
disable_auto_compactions
=
true
;
column_family_options
.
source_compaction_factor
=
(
1
<<
30
);
column_family_options
.
num_levels
=
2
;
column_family_options
.
target_file_size_base
=
256
*
1024
*
1024
;
column_family_options
.
max_mem_compaction_level
=
0
;
column_family_options
.
memtable_factory
.
reset
(
new
VectorRepFactory
());
}
return
column_family_options
;
}
...
...
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