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Evict blocks based on memory limit & block usage

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This commit is contained in:
Vitaliy Filippov
2024-03-16 13:24:36 +03:00
parent 7d5e1cc393
commit 61ef000c6e
5 changed files with 142 additions and 14 deletions
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src/kv_cli.cpp
+31 -3
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@@ -30,11 +30,12 @@ public:
char *cur_cmd = NULL;
int cur_cmd_size = 0, cur_cmd_alloc = 0;
bool finished = false, eof = false;
json11::Json::object cfg;
~kv_cli_t();
static json11::Json::object parse_args(int narg, const char *args[]);
void run(json11::Json cfg);
void run(const json11::Json::object & cfg);
void read_cmd();
void next_cmd();
void handle_cmd(const std::string & cmd, std::function<void()> cb);
@@ -86,7 +87,7 @@ json11::Json::object kv_cli_t::parse_args(int narg, const char *args[])
return cfg;
}
void kv_cli_t::run(json11::Json cfg)
void kv_cli_t::run(const json11::Json::object & cfg)
{
// Create client
ringloop = new ring_loop_t(512);
@@ -229,7 +230,8 @@ void kv_cli_t::handle_cmd(const std::string & cmd, std::function<void()> cb)
cb();
return;
}
db->open(INODE_WITH_POOL(pool_id, inode_id), kv_block_size, [=](int res)
cfg["kv_block_size"] = (uint64_t)kv_block_size;
db->open(INODE_WITH_POOL(pool_id, inode_id), cfg, [=](int res)
{
if (res < 0)
fprintf(stderr, "Error opening index: %s (code %d)\n", strerror(-res), res);
@@ -238,6 +240,31 @@ void kv_cli_t::handle_cmd(const std::string & cmd, std::function<void()> cb)
cb();
});
}
else if (opname == "config")
{
auto pos2 = cmd.find_first_of(" \t", pos+1);
if (pos2 == std::string::npos)
{
fprintf(stderr, "Usage: config <property> <value>\n");
cb();
return;
}
auto key = trim(cmd.substr(pos+1, pos2-pos-1));
auto value = parse_size(trim(cmd.substr(pos2+1)));
if (key != "kv_memory_limit" &&
key != "kv_evict_max_misses" &&
key != "kv_evict_attempts_per_level" &&
key != "kv_evict_unused_age")
{
fprintf(stderr, "Allowed properties: kv_memory_limit, kv_evict_max_misses, kv_evict_attempts_per_level, kv_evict_unused_age\n");
}
else
{
cfg[key] = value;
db->set_config(cfg);
}
cb();
}
else if (opname == "get" || opname == "set" || opname == "del")
{
if (opname == "get" || opname == "del")
@@ -349,6 +376,7 @@ void kv_cli_t::handle_cmd(const std::string & cmd, std::function<void()> cb)
fprintf(
stderr, "Unknown operation: %s. Supported operations:\n"
"open <pool_id> <inode_id> [block_size]\n"
"config <property> <value>\n"
"get <key>\nset <key> <value>\ndel <key>\nlist [<start> [end]]\n"
"close\nquit\n", opname.c_str()
);