66e43912d6
In that level no io_priority_class-es exist. Instead, all the IO happens in the context of current sched-group. File API no longer accepts prio class argument (and makes io_intent arg mandatory to impls). So the change consists of - removing all usage of io_priority_class - patching file_impl's inheritants to updated API - priority manager goes away altogether - IO bandwidth update is performed on respective sched group - tune-up scylla-gdb.py io_queues command The first change is huge and was made semi-autimatically by: - grep io_priority_class | default_priority_class - remove all calls, found methods' args and class' fields Patching file_impl-s is smaller, but also mechanical: - replace io_priority_class& argument with io_intent* one - pass intent to lower file (if applicatble) Dropping the priority manager is: - git-rm .cc and .hh - sed out all the #include-s - fix configure.py and cmakefile The scylla-gdb.py update is a bit hairry -- it needs to use task queues list for IO classes names and shares, but to detect it should it checks for the "commitlog" group is present. Signed-off-by: Pavel Emelyanov <xemul@scylladb.com> Closes #13963
33 lines
1.0 KiB
C++
33 lines
1.0 KiB
C++
/*
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* Copyright (C) 2021-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#pragma once
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#include <seastar/util/noncopyable_function.hh>
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#include "feed_writers.hh"
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namespace mutation_writer {
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struct segregate_config {
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// Maximum amount of memory to be used by the in-memory segregation
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// (sorting) structures. Partitions can be split across partitions
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size_t max_memory;
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};
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// Given a producer that may contain partitions in the wrong order, or even
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// contain partitions multiple times, separate them such that each output
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// stream keeps the partition ordering guarantee. In other words, repair
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// a stream that violates the ordering requirements by splitting it into output
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// streams that honor it.
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// This is useful for scrub compaction to split sstables containing out-of-order
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// and/or duplicate partitions into sstables that honor the partition ordering.
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future<> segregate_by_partition(flat_mutation_reader_v2 producer, segregate_config cfg, reader_consumer_v2 consumer);
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} // namespace mutation_writer
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