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fcb8d040e8
Instead of lengthy blurbs, switch to single-line, machine-readable standardized (https://spdx.dev) license identifiers. The Linux kernel switched long ago, so there is strong precedent. Three cases are handled: AGPL-only, Apache-only, and dual licensed. For the latter case, I chose (AGPL-3.0-or-later and Apache-2.0), reasoning that our changes are extensive enough to apply our license. The changes we applied mechanically with a script, except to licenses/README.md. Closes #9937
84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
/*
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* Copyright (C) 2015-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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#include <seastar/core/distributed.hh>
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#include <seastar/core/app-template.hh>
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#include <seastar/core/sstring.hh>
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#include <seastar/core/thread.hh>
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#include <seastar/util/defer.hh>
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#include "utils/managed_bytes.hh"
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#include "utils/logalloc.hh"
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#include "utils/managed_ref.hh"
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#include "test/perf/perf.hh"
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#include "log.hh"
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void print_stats() {
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std::cout << "free " << memory::stats().free_memory()
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<< " used " << logalloc::shard_tracker().occupancy().used_space()
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<< " total " << logalloc::shard_tracker().occupancy().total_space()
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<< std::endl;
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}
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int main(int argc, char** argv) {
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namespace bpo = boost::program_options;
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app_template app;
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app.add_options()
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("size", bpo::value<unsigned>()->default_value(1024), "size of allocated object")
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("batch", bpo::value<unsigned>()->default_value(1024), "number of allocated objects between deferring points")
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("count", bpo::value<unsigned>()->default_value(1024*200), "number of objects to allocate before exiting");
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logging::logger_registry().set_all_loggers_level(logging::log_level::debug);
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return app.run(argc, argv, [&app] {
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auto obj_size = app.configuration()["size"].as<unsigned>();
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auto obj_count = app.configuration()["count"].as<unsigned>();
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auto objects_in_batch = app.configuration()["batch"].as<unsigned>();
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return seastar::async([obj_size, obj_count, objects_in_batch] {
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chunked_fifo<managed_bytes> refs;
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logalloc::region r;
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with_allocator(r.allocator(), [&] {
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auto clear_refs = defer([&refs] { refs.clear(); });
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r.make_evictable([&] {
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return with_allocator(r.allocator(), [&] {
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if (refs.empty()) {
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return memory::reclaiming_result::reclaimed_nothing;
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}
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refs.pop_front();
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return memory::reclaiming_result::reclaimed_something;
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});
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});
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uint64_t counter = 0;
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logalloc::allocating_section alloc_sect;
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alloc_sect.set_lsa_reserve(0);
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alloc_sect.set_std_reserve(0);
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while (counter < obj_count) {
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alloc_sect(r, [&] {
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auto obj = managed_bytes(managed_bytes::initialized_later(), obj_size);
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logalloc::reclaim_lock l(r);
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refs.push_back(std::move(obj));
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});
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++counter;
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if (counter % objects_in_batch == 0) {
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print_stats();
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seastar::thread::yield();
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}
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}
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});
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return 0;
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});
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});
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}
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