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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.. | ||
linux | ||
sys | ||
libnvpair.h | ||
libuutil_common.h | ||
libuutil_impl.h | ||
libuutil.h | ||
libzfs_core.h | ||
libzfs_impl.h | ||
libzfs.h | ||
Makefile.am | ||
zfeature_common.h | ||
zfs_comutil.h | ||
zfs_deleg.h | ||
zfs_fletcher.h | ||
zfs_namecheck.h | ||
zfs_prop.h | ||
zpios-ctl.h | ||
zpios-internal.h |