61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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#include "conf-parser.h"
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#include "oomd-util.h"
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#include "sd-event.h"
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#include "varlink.h"
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/* Polling interval for monitoring stats */
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#define INTERVAL_USEC (1 * USEC_PER_SEC)
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/* Used to weight the averages */
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#define AVERAGE_SIZE_DECAY 4
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/* Take action if 10s of memory pressure > 60 for more than 30s. We use the "full" value from PSI so this is the
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* percentage of time all tasks were delayed (i.e. unproductive).
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* Generally 60 or higher might be acceptable for something like system.slice with no memory.high set; processes in
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* system.slice are assumed to be less latency sensitive. */
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#define PRESSURE_DURATION_USEC (30 * USEC_PER_SEC)
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#define DEFAULT_MEM_PRESSURE_LIMIT 60
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#define DEFAULT_SWAP_USED_LIMIT 90
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#define POST_ACTION_DELAY_USEC (15 * USEC_PER_SEC)
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typedef struct Manager Manager;
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struct Manager {
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sd_bus *bus;
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sd_event *event;
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Hashmap *polkit_registry;
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bool dry_run;
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unsigned swap_used_limit;
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loadavg_t default_mem_pressure_limit;
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/* k: cgroup paths -> v: OomdCGroupContext
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* Used to detect when to take action. */
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Hashmap *monitored_swap_cgroup_contexts;
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Hashmap *monitored_mem_pressure_cgroup_contexts;
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OomdSystemContext system_context;
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usec_t post_action_delay_start;
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sd_event_source *cgroup_context_event_source;
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Varlink *varlink;
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};
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void manager_free(Manager *m);
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DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
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int manager_new(Manager **ret);
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int manager_start(Manager *m, bool dry_run, int swap_used_limit, int mem_pressure_limit);
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int manager_get_dump_string(Manager *m, char **ret);
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CONFIG_PARSER_PROTOTYPE(config_parse_oomd_default);
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