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scylladb/tests/lsa_async_eviction_test.cc

102 lines
3.6 KiB
C++

/*
* Copyright (C) 2015 ScyllaDB
*/
/*
* This file is part of Scylla.
*
* Scylla is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Scylla is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
*/
#include <core/distributed.hh>
#include <core/app-template.hh>
#include <core/sstring.hh>
#include <core/thread.hh>
#include <seastar/util/defer.hh>
#include "utils/managed_bytes.hh"
#include "utils/logalloc.hh"
#include "utils/managed_ref.hh"
#include "tests/perf/perf.hh"
#include "log.hh"
#include "disk-error-handler.hh"
thread_local disk_error_signal_type commit_error;
thread_local disk_error_signal_type general_disk_error;
void print_stats() {
std::cout << "free " << memory::stats().free_memory()
<< " used " << logalloc::shard_tracker().occupancy().used_space()
<< " total " << logalloc::shard_tracker().occupancy().total_space()
<< std::endl;
}
int main(int argc, char** argv) {
namespace bpo = boost::program_options;
app_template app;
app.add_options()
("size", bpo::value<unsigned>()->default_value(1024), "size of allocated object")
("batch", bpo::value<unsigned>()->default_value(1024), "number of allocated objects between deferring points")
("count", bpo::value<unsigned>()->default_value(1024*200), "number of objects to allocate before exiting");
logging::logger_registry().set_all_loggers_level(logging::log_level::debug);
return app.run(argc, argv, [&app] {
auto obj_size = app.configuration()["size"].as<unsigned>();
auto obj_count = app.configuration()["count"].as<unsigned>();
auto objects_in_batch = app.configuration()["batch"].as<unsigned>();
return seastar::async([obj_size, obj_count, objects_in_batch] {
chunked_fifo<managed_bytes> refs;
logalloc::region r;
with_allocator(r.allocator(), [&] {
auto clear_refs = defer([&refs] { refs.clear(); });
r.make_evictable([&] {
return with_allocator(r.allocator(), [&] {
if (refs.empty()) {
return memory::reclaiming_result::reclaimed_nothing;
}
refs.pop_front();
return memory::reclaiming_result::reclaimed_something;
});
});
uint64_t counter = 0;
logalloc::allocating_section alloc_sect;
alloc_sect.set_lsa_reserve(0);
alloc_sect.set_std_reserve(0);
while (counter < obj_count) {
alloc_sect(r, [&] {
auto obj = managed_bytes(managed_bytes::initialized_later(), obj_size);
logalloc::reclaim_lock l(r);
refs.push_back(std::move(obj));
});
++counter;
if (counter % objects_in_batch == 0) {
print_stats();
seastar::thread::yield();
}
}
});
return 0;
});
});
}