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b5ca0eb2a2f30b1f2d4f0be6d3c5ab8e33db33aa
scylladb/utils
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Tomasz Grabiec b5ca0eb2a2 lsa: Introduce lsa_buffer 
lsa_buffer is similar in spirit to std::unique_ptr<char[]>. It owns
buffers allocated inside LSA segments. It uses an alternative
allocation method which differs from regular LSA allocations in the
following ways:

  1) LSA segments only hold buffers, they don't hold metadata. They
     also don't mix with standard allocations. So a 128K segment can
     hold 32 4K buffers.

  2) objects' life time is managed by lsa_buffer, an owning smart
     pointer, which is automatically updated when buffers are migrated
     to another segment. This makes LSA allocations easier to use and
     off-loads metadata management to the client (which can keep the
     lsa_buffer wherever he wants).

The metadata is kept inside segment_descriptor, in a vector. Each
allocated buffer will have an entangled object there (8 bytes), which
is paired with an entabled object inside lsa_buffer.

The reason to have an alternative allocation method is to efficiently
pack buffers inside LSA segments.
2021-07-02 19:02:13 +02:00
..
arch/powerpc/crc32-vpmsum
utils: crc32: mark power crc32 assembly as not requiring an executable stack
2018-10-02 18:48:23 +01:00
gz
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allocation_strategy.hh
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anchorless_list.hh
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2021-06-06 19:18:49 +03:00
array-search.cc
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2021-06-06 19:18:49 +03:00
array-search.hh
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2021-06-06 19:18:49 +03:00
ascii.cc
utils: add fast ascii string validation
2018-12-24 09:58:08 +02:00
ascii.hh
utils: add fast ascii string validation
2018-12-24 09:58:08 +02:00
atomic_vector.hh
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big_decimal.cc
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big_decimal.hh
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bit_cast.hh
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bloom_calculations.cc
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bloom_calculations.hh
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bloom_filter.cc
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bloom_filter.hh
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bounded_stats_deque.hh
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bptree.hh
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buffer_input_stream.cc
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buffer_input_stream.hh
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build_id.cc
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build_id.hh
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cached_file.hh
cached_file: Switch to bplus::tree
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chunked_vector.hh
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class_registrator.hh
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clmul.hh
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2021-06-06 19:18:49 +03:00
collection-concepts.hh
util: Drop int_or_strong_ordering concept
2021-06-08 11:40:55 +03:00
compact-radix-tree.hh
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config_file_impl.hh
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config_file.cc
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config_file.hh
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coroutine.hh
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crc.hh
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data_input.hh
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date.h
…
directories.cc
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directories.hh
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disk-error-handler.cc
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disk-error-handler.hh
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div_ceil.hh
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double-decker.hh
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dynamic_bitset.cc
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dynamic_bitset.hh
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entangled.hh
lsa: Introduce entangled helper
2021-07-02 19:02:13 +02:00
enum_option.hh
utils/enum_option.hh: add implicit converter to the underlying enum
2021-06-13 13:18:49 +03:00
error_injection.cc
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error_injection.hh
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estimated_histogram.hh
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exceptions.cc
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exceptions.hh
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exponential_backoff_retry.hh
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extremum_tracking.hh
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fb_utilities.hh
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file_lock.cc
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file_lock.hh
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flush_queue.hh
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fragment_range.hh
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fragmented_temporary_buffer.hh
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generation-number.cc
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generation-number.hh
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hash.hh
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histogram_metrics_helper.hh
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histogram.hh
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human_readable.cc
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human_readable.hh
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i_filter.cc
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i_filter.hh
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in.hh
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input_stream.hh
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int_range.hh
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intrusive_btree.hh
btree: Improve unlink_leftmost_without_rebalance()
2021-06-24 12:03:26 +03:00
intrusive-array.hh
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joinpoint.hh
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large_bitset.cc
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large_bitset.hh
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latency.hh
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like_matcher.cc
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like_matcher.hh
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limiting_data_source.cc
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limiting_data_source.hh
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linearizing_input_stream.hh
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loading_cache.hh
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loading_shared_values.hh
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log_heap.hh
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logalloc.cc
lsa: Introduce lsa_buffer
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logalloc.hh
lsa: Introduce lsa_buffer
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lru.hh
row_cache: Use generic LRU for eviction
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managed_bytes.cc
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managed_bytes.hh
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managed_ref.hh
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managed_vector.hh
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maybe_yield.hh
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memory_data_sink.hh
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multiprecision_int.cc
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multiprecision_int.hh
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murmur_hash.cc
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murmur_hash.hh
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mutable_view.hh
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neat-object-id.hh
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observable.hh
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overloaded_functor.hh
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phased_barrier.hh
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preempt.hh
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ranges.hh
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rate_limiter.cc
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rate_limiter.hh
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reusable_buffer.hh
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rjson.cc
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rjson.hh
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runtime.cc
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runtime.hh
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sequenced_set.hh
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serialization.hh
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serialized_action.hh
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small_vector.hh
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stall_free.hh
utils: merge_to_gently: eliminate extraneous loop on merge
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streaming_histogram.hh
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top_k.hh
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updateable_value.cc
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updateable_value.hh
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utf8.cc
utils/utf8.c: move includes outside of namespaces
2021-05-30 23:23:20 +03:00
utf8.hh
utils: fragment_range: add a fragment iterator for FragmentedView
2021-01-15 14:05:44 +01:00
UUID_gen.cc
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UUID_gen.hh
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uuid.cc
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UUID.hh
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vle.hh
uleb64: Add express encoding
2021-06-16 17:47:10 +03:00