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osd: cache tier: add config option for eviction check list size #6997

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Dec 22, 2015
Merged

osd: cache tier: add config option for eviction check list size #6997

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1 change: 1 addition & 0 deletions src/common/config_opts.h
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Original file line number Diff line number Diff line change
Expand Up @@ -596,6 +596,7 @@ OPTION(osd_pool_default_cache_target_dirty_high_ratio, OPT_FLOAT, .6)
OPTION(osd_pool_default_cache_target_full_ratio, OPT_FLOAT, .8)
OPTION(osd_pool_default_cache_min_flush_age, OPT_INT, 0) // seconds
OPTION(osd_pool_default_cache_min_evict_age, OPT_INT, 0) // seconds
OPTION(osd_pool_default_cache_max_evict_check_size, OPT_INT, 10) // max size to check for eviction
OPTION(osd_hit_set_min_size, OPT_INT, 1000) // min target size for a HitSet
OPTION(osd_hit_set_max_size, OPT_INT, 100000) // max target size for a HitSet
OPTION(osd_hit_set_namespace, OPT_STR, ".ceph-internal") // rados namespace for hit_set tracking
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2 changes: 1 addition & 1 deletion src/osd/ReplicatedPG.cc
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Expand Up @@ -11474,7 +11474,7 @@ bool ReplicatedPG::agent_work(int start_max, int agent_flush_quota)
assert(base_pool);

int ls_min = 1;
int ls_max = 10; // FIXME?
int ls_max = cct->_conf->osd_pool_default_cache_max_evict_check_size;

// list some objects. this conveniently lists clones (oldest to
// newest) before heads... the same order we want to flush in.
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