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ircd::db: request pool conf item set callback.

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This commit is contained in:
Jason Volk 2018-08-22 14:08:27 -07:00
parent 6cdb1bba63
commit b753637385
2 changed files with 24 additions and 10 deletions
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32
ircd/db.cc
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@ -74,6 +74,25 @@ ircd::db::rog
"rdb", 'R'
};
ircd::conf::item<size_t>
ircd::db::request_pool_stack_size
{
{ "name", "ircd.db.request_pool.stack_size" },
{ "default", long(128_KiB) },
};
ircd::conf::item<size_t>
ircd::db::request_pool_size
{
{
{ "name", "ircd.db.request_pool.size" },
{ "default", 32L },
}, []
{
request.set(size_t(request_pool_size));
}
};
/// Concurrent request pool. Requests to seek may be executed on this
/// pool in cases where a single context would find it advantageous.
/// Some examples are a db::row seek, or asynchronous prefetching.
@ -85,15 +104,8 @@ decltype(ircd::db::request)
ircd::db::request
{
"db req",
128_KiB, // stack size (must be adequate for transfer to rocksdb)
0, // don't prespawn because this is static
};
ircd::conf::item<size_t>
request_pool_default
{
{ "name", "ircd.db.request_pool.default" },
{ "default", 32L }
size_t(request_pool_stack_size),
0, // don't prespawn because this is static
};
///////////////////////////////////////////////////////////////////////////////
@ -115,7 +127,7 @@ ircd::db::init::init()
{
init_compressions();
init_directory();
request.add(size_t(request_pool_default));
request.add(request_pool_size);
}
ircd::db::init::~init()

2
ircd/db.h
View file

@ -39,6 +39,8 @@ namespace ircd::db
const auto DEFAULT_READAHEAD = 4_MiB;
extern log::log rog;
extern conf::item<size_t> request_pool_size;
extern conf::item<size_t> request_pool_stack_size;
extern ctx::pool request;
string_view reflect(const rocksdb::Env::Priority &p);