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e0b0ca983d
Currently there is no mechanism to inspect which dbufs are being cached by the system. There are some coarse counters in arcstats by they only give a rough idea of what's being cached. This patch aims to improve the current situation by adding a new dbufs kstat. When read this new kstat will walk all cached dbufs linked in to the dbuf_hash. For each dbuf it will dump detailed information about the buffer. It will also dump additional information about the referenced arc buffer and its related dnode. This provides a more complete view in to exactly what is being cached. With this generic infrastructure in place utilities can be written to post-process the data to understand exactly how the caching is working. For example, the data could be processed to show a list of all cached dnodes and how much space they're consuming. Or a similar list could be generated based on dnode type. Many other ways to interpret the data exist based on what kinds of questions you're trying to answer. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Prakash Surya <surya1@llnl.gov> |
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| .. | ||
| fm | ||
| fs | ||
| arc.h | ||
| avl_impl.h | ||
| avl.h | ||
| bplist.h | ||
| bpobj.h | ||
| bptree.h | ||
| dbuf.h | ||
| ddt.h | ||
| dmu_impl.h | ||
| dmu_objset.h | ||
| dmu_send.h | ||
| dmu_traverse.h | ||
| dmu_tx.h | ||
| dmu_zfetch.h | ||
| dmu.h | ||
| dnode.h | ||
| dsl_dataset.h | ||
| dsl_deadlist.h | ||
| dsl_deleg.h | ||
| dsl_destroy.h | ||
| dsl_dir.h | ||
| dsl_pool.h | ||
| dsl_prop.h | ||
| dsl_scan.h | ||
| dsl_synctask.h | ||
| dsl_userhold.h | ||
| efi_partition.h | ||
| Makefile.am | ||
| metaslab_impl.h | ||
| metaslab.h | ||
| nvpair_impl.h | ||
| nvpair.h | ||
| refcount.h | ||
| rrwlock.h | ||
| sa_impl.h | ||
| sa.h | ||
| spa_boot.h | ||
| spa_impl.h | ||
| spa.h | ||
| space_map.h | ||
| txg_impl.h | ||
| txg.h | ||
| u8_textprep_data.h | ||
| u8_textprep.h | ||
| uberblock_impl.h | ||
| uberblock.h | ||
| uio_impl.h | ||
| unique.h | ||
| uuid.h | ||
| vdev_disk.h | ||
| vdev_file.h | ||
| vdev_impl.h | ||
| vdev.h | ||
| xvattr.h | ||
| zap_impl.h | ||
| zap_leaf.h | ||
| zap.h | ||
| zfeature.h | ||
| zfs_acl.h | ||
| zfs_context.h | ||
| zfs_ctldir.h | ||
| zfs_debug.h | ||
| zfs_dir.h | ||
| zfs_fuid.h | ||
| zfs_ioctl.h | ||
| zfs_onexit.h | ||
| zfs_rlock.h | ||
| zfs_sa.h | ||
| zfs_stat.h | ||
| zfs_vfsops.h | ||
| zfs_vnops.h | ||
| zfs_znode.h | ||
| zil_impl.h | ||
| zil.h | ||
| zio_checksum.h | ||
| zio_compress.h | ||
| zio_impl.h | ||
| zio.h | ||
| zpl.h | ||
| zrlock.h | ||
| zvol.h | ||