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[CP] DecoderCtx optimizing memory fragmentation.

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This commit is contained in:
obdev
2023-04-20 04:41:31 +00:00
committed by ob-robot
parent d3f25346dd
commit 9f8e92e0ec
1 changed files with 16 additions and 14 deletions
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30
src/storage/blocksstable/encoding/ob_micro_block_decoder.cpp
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@ -70,17 +70,18 @@ class ObDecoderCtxArray
{
public:
typedef ObColumnDecoderCtx ObDecoderCtx;
ObDecoderCtxArray() {};
explicit ObDecoderCtxArray(ObIAllocator &allocator): ctxs_(), allocator_(&allocator) {};
virtual ~ObDecoderCtxArray()
{
FOREACH(it, ctxs_) {
ObDecoderCtx *c = *it;
OB_DELETE(ObDecoderCtx, ObModIds::OB_SSTABLE_READER, c);
c->~ObDecoderCtx();
allocator_->free(c);
}
ctxs_.reset();
}
TO_STRING_KV(K_(ctxs));
TO_STRING_KV(K_(ctxs), KP_(allocator));
ObDecoderCtx **get_ctx_array(int64_t size)
{
@ -92,13 +93,14 @@ public:
} else {
if (ctxs_.size() < size) {
for (int64_t i = ctxs_.size(); OB_SUCC(ret) && i < size; ++i) {
ObDecoderCtx *ctx = OB_NEW(ObDecoderCtx, ObModIds::OB_SSTABLE_READER);
if (NULL == ctx) {
ObDecoderCtx *ctx = nullptr;
if (OB_ISNULL(ctx = OB_NEWx(ObDecoderCtx, allocator_))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("alloc memory failed", K(ret));
} else if (OB_FAIL(ctxs_.push_back(ctx))) {
LOG_WARN("array push back failed", K(ret));
OB_DELETE(ObDecoderCtx, ObModIds::OB_SSTABLE_READER, ctx);
ctx->~ObDecoderCtx();
allocator_->free(ctx);
}
}
if (OB_SUCC(ret)) {
@ -113,6 +115,7 @@ public:
private:
ObArray<ObDecoderCtx *> ctxs_;
ObIAllocator *allocator_;
DISALLOW_COPY_AND_ASSIGN(ObDecoderCtxArray);
};
@ -123,14 +126,12 @@ ObColumnDecoderCtx ObMicroBlockDecoder::none_exist_column_decoder_ctx_;
class ObTLDecoderCtxArray
{
public:
ObTLDecoderCtxArray() {}
ObTLDecoderCtxArray(): ctxs_array_(), allocator_("TLDecoderCtx") {}
virtual ~ObTLDecoderCtxArray()
{
FOREACH(it, ctxs_array_) {
ObDecoderCtxArray *ctxs = *it;
OB_DELETE(ObDecoderCtxArray, ObModIds::OB_SSTABLE_READER, ctxs);
}
ctxs_array_.reset();
allocator_.reset();
}
static ObDecoderCtxArray *alloc()
@ -142,8 +143,7 @@ public:
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("NULL instance", K(ret));
} else if (tl_array->ctxs_array_.empty()) {
ctxs = OB_NEW(ObDecoderCtxArray, ObModIds::OB_SSTABLE_READER);
if (NULL == ctxs) {
if (OB_ISNULL(ctxs = OB_NEWx(ObDecoderCtxArray, (&tl_array->allocator_), tl_array->allocator_))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("alloc memory failed", K(ret));
}
@ -165,7 +165,8 @@ public:
// do nothing
} else if (OB_FAIL(tl_array->ctxs_array_.push_back(ctxs))) {
LOG_WARN("array push back failed", K(ret));
OB_DELETE(ObDecoderCtxArray, ObModIds::OB_SSTABLE_READER, ctxs);
ctxs->~ObDecoderCtxArray();
tl_array->allocator_.free(ctxs);
}
}
@ -174,6 +175,7 @@ private:
private:
ObArray<ObDecoderCtxArray *> ctxs_array_;
ObArenaAllocator allocator_;
DISALLOW_COPY_AND_ASSIGN(ObTLDecoderCtxArray);
};