Lines Matching defs:fragmentation

106  * Allow metaslabs to keep their active state as long as their fragmentation
168  * Enable/disable fragmentation weighting on metaslabs.
312  * Calculate the metaslab class's fragmentation metric. The metric
322 	uint64_t fragmentation = 0;
340 		 * If a metaslab group does not contain a fragmentation
350 		 * to the overall pool fragmentation metric.
352 		fragmentation += mg->mg_fragmentation *
355 	fragmentation /= metaslab_class_get_space(mc);
357 	ASSERT3U(fragmentation, <=, 100);
359 	return (fragmentation);
445 	 * fragmentation into account if the metaslab group has a valid
446 	 * fragmentation metric (i.e. a value between 0 and 100).
711  * Calculate the fragmentation for a given metaslab group. We can use
715  * group have a fragmentation metric.
721 	uint64_t fragmentation = 0;
731 		fragmentation += msp->ms_fragmentation;
737 	fragmentation /= valid_ms;
738 	ASSERT3U(fragmentation, <=, 100);
739 	return (fragmentation);
745  * zfs_mg_noalloc_threshold or its fragmentation metric is greater than
758 	 * considered allocatable -- free space and fragmentation. If
760 	 * the fragmentation is less than the fragmentation threshold then
1325  * This table defines a segment size based fragmentation metric that will
1326  * allow each metaslab to derive its own fragmentation value. This is done
1331  * us the fragmentation metric. This means that a high fragmentation metric
1334  * large segments. A 10% change in fragmentation equates to approximately
1340  * of the table. Since the fragmentation value is never stored on disk, it
1363  * Calclate the metaslab's fragmentation metric. A return value
1372 	uint64_t fragmentation = 0;
1417 		fragmentation += space * zfs_frag_table[idx];
1421 		fragmentation /= total;
1422 	ASSERT3U(fragmentation, <=, 100);
1423 	return (fragmentation);
1428  * This is based on the amount of free space, the level of fragmentation,
1459 		 * Use the fragmentation information to inversely scale
1469 		 * this metaslab again. The fragmentation metric may have
1496 	 * we'll polish it off. If the fragmentation on this metaslab