Lines Matching defs:fragmentation

121  * fragmentation metric (measured as a percentage) is less than or
133  * B getting its fragmentation below the threshold).
136  * good enough that fragmentation increases uniformly across all vdevs
144  * Allow metaslabs to keep their active state as long as their fragmentation
230  * Enable/disable fragmentation weighting on metaslabs.
553  * Calculate the metaslab class's fragmentation metric. The metric
563 	uint64_t fragmentation = 0;
581 		 * If a metaslab group does not contain a fragmentation
591 		 * to the overall pool fragmentation metric.
593 		fragmentation += mg->mg_fragmentation *
596 	fragmentation /= metaslab_class_get_space(mc);
598 	ASSERT3U(fragmentation, <=, 100);
600 	return (fragmentation);
732  * the zfs_mg_noalloc_threshold or has a fragmentation value that is
780 	 * fragmentation into account if the metaslab group has a valid
781 	 * fragmentation metric (i.e. a value between 0 and 100).
1178  * Calculate the fragmentation for a given metaslab group. We can use
1182  * group have a fragmentation metric.
1188 	uint64_t fragmentation = 0;
1200 		fragmentation += msp->ms_fragmentation;
1206 	fragmentation /= valid_ms;
1207 	ASSERT3U(fragmentation, <=, 100);
1208 	return (fragmentation);
1214  * zfs_mg_noalloc_threshold or its fragmentation metric is greater than
2117  * Ensure that the metaslab's weight and fragmentation are consistent
2143 	 * fragmentation and ms_max_size as is - there is nothing for
2895  * This table defines a segment size based fragmentation metric that will
2896  * allow each metaslab to derive its own fragmentation value. This is done
2898  * multiplying that by the fragmentation metric in this table. Doing
2901  * us the fragmentation metric. This means that a high fragmentation metric
2904  * large segments. A 10% change in fragmentation equates to approximately
2910  * of the table. Since the fragmentation value is never stored on disk, it
2933  * Calculate the metaslab's fragmentation metric and set ms_fragmentation.
2942 	uint64_t fragmentation = 0;
3004 		fragmentation += space * zfs_frag_table[idx];
3008 		fragmentation /= total;
3009 	ASSERT3U(fragmentation, <=, 100);
3011 	msp->ms_fragmentation = fragmentation;
3016  * This is based on the amount of free space, the level of fragmentation,
3036 		 * Use the fragmentation information to inversely scale
3046 		 * this metaslab again. The fragmentation metric may have
3073 	 * we'll polish it off. If the fragmentation on this metaslab
6240 	"Use the fragmentation metric to prefer less fragmented metaslabs");