Leonid Bloch b749562d98 qcow2: Assign the L2 cache relatively to the image size ... Sufficient L2 cache can noticeably improve the performance when using large images with frequent I/O. Previously, unless 'cache-size' was specified and was large enough, the L2 cache was set to a certain size without taking the virtual image size into account. Now, the L2 cache assignment is aware of the virtual size of the image, and will cover the entire image, unless the cache size needed for that is larger than a certain maximum. This maximum is set to 1 MB by default (enough to cover an 8 GB image with the default cluster size) but can be increased or decreased using the 'l2-cache-size' option. This option was previously documented as the *maximum* L2 cache size, and this patch makes it behave as such, instead of as a constant size. Also, the existing option 'cache-size' can limit the sum of both L2 and refcount caches, as previously. Signed-off-by: Leonid Bloch <lbloch@janustech.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>		2018-10-01 12:51:12 +02:00
..
accounting.c	block/accounting: introduce latency histogram	2018-03-19 14:58:37 -05:00
backup.c	block/backup: make function variables consistently named	2018-08-31 16:28:33 +02:00
blkdebug.c	qstring: Move qstring_from_substr()'s @end one to the right	2018-07-28 09:09:58 +02:00
blklogwrites.c	block: Use BdrvChild to discard	2018-07-10 16:01:52 +02:00
blkreplay.c	trivial: Make bios files and source files non-executable	2018-09-25 17:26:18 +02:00
blkverify.c	qstring: Move qstring_from_substr()'s @end one to the right	2018-07-28 09:09:58 +02:00
block-backend.c	block: Use a single global AioWait	2018-09-25 15:50:15 +02:00
bochs.c	block: Deprecate bdrv_set_read_only() and users	2017-11-17 13:35:59 +01:00
cloop.c	block: Deprecate bdrv_set_read_only() and users	2017-11-17 13:35:59 +01:00
commit.c	block/commit: refactor commit to use job callbacks	2018-09-25 15:31:15 +02:00
copy-on-read.c	block: drop empty .bdrv_close handlers	2018-08-15 12:50:39 +02:00
create.c	jobs: utilize job_exit shim	2018-08-31 16:28:33 +02:00
crypto.c	luks: Allow share-rw=on	2018-08-15 12:50:39 +02:00
crypto.h	block/crypto: Simplify block_crypto_{open,create}_opts_init()	2018-06-29 14:20:56 +02:00
curl.c	curl: Make sslverify=off disable host as well as peer verification.	2018-09-24 23:46:05 -04:00
dirty-bitmap.c	dirty-bitmap: fix double lock on bitmap enabling	2018-07-04 02:12:49 -04:00
dmg-bz2.c	dmg: Move libbz2 code to dmg-bz2.so	2016-10-07 14:14:06 +02:00
dmg.c	block: Deprecate bdrv_set_read_only() and users	2017-11-17 13:35:59 +01:00
dmg.h	block: remove "qemu/osdep.h" from header file	2017-12-18 17:07:02 +03:00
file-posix.c	file-posix: Forbid trying to change unsupported options during reopen	2018-10-01 12:51:12 +02:00
file-win32.c	block: Prefix file driver trace points with "file_"	2018-07-10 16:01:51 +02:00
gluster.c	block: Fix typos in comments (found by codespell)	2018-07-23 16:50:43 +02:00
io.c	block: Use a single global AioWait	2018-09-25 15:50:15 +02:00
iscsi-opts.c	Move include qemu/option.h from qemu-common.h to actual users	2018-02-09 13:52:16 +01:00
iscsi.c	block: Add copy offloading trace points	2018-07-10 16:01:52 +02:00
linux-aio.c	block/linux-aio: acquire AioContext before qemu_laio_process_completions	2018-09-25 15:50:15 +02:00
Makefile.objs	block: Add blklogwrites	2018-07-05 10:29:19 +02:00
mirror.c	block/mirror: conservative mirror_exit refactor	2018-09-25 15:31:15 +02:00
nbd-client.c	nbd/client: Add x-dirty-bitmap to query bitmap from server	2018-07-02 15:27:38 -05:00
nbd-client.h	nbd/client: Add x-dirty-bitmap to query bitmap from server	2018-07-02 15:27:38 -05:00
nbd.c	qstring: Move qstring_from_substr()'s @end one to the right	2018-07-28 09:09:58 +02:00
nfs.c	block: Convert .bdrv_truncate callback to coroutine_fn	2018-06-29 14:20:56 +02:00
null.c	block: drop empty .bdrv_close handlers	2018-08-15 12:50:39 +02:00
nvme.c	nvme: simplify plug/unplug	2018-08-15 10:12:35 +08:00
parallels.c	parallels: Switch to byte-based calls	2018-06-29 14:20:56 +02:00
parallels.h	Clean up includes	2018-02-09 05:05:11 +01:00
qapi.c	block/qapi: Fix memory leak in qmp_query_blockstats()	2018-08-15 12:50:39 +02:00
qcow.c	qcow: fix a reference leak	2018-07-30 15:35:37 +02:00
qcow2-bitmap.c	qcow2: add overlap check for bitmap directory	2018-07-09 19:43:24 +02:00
qcow2-cache.c	qcow2: Allow configuring the L2 slice size	2018-02-13 17:00:00 +01:00
qcow2-cluster.c	qcow2: Free allocated clusters on write error	2018-06-29 14:20:56 +02:00
qcow2-refcount.c	Block layer patches:	2018-07-10 17:28:29 +01:00
qcow2-snapshot.c	block: use local path for local headers	2018-05-31 04:16:06 +03:00
qcow2.c	qcow2: Assign the L2 cache relatively to the image size	2018-10-01 12:51:12 +02:00
qcow2.h	qcow2: Assign the L2 cache relatively to the image size	2018-10-01 12:51:12 +02:00
qed-check.c	block: convert bdrv_check callback to coroutine_fn	2018-03-09 15:17:47 +01:00
qed-cluster.c	qed: protect table cache with CoMutex	2017-07-17 11:34:11 +08:00
qed-l2-cache.c	qed: protect table cache with CoMutex	2017-07-17 11:34:11 +08:00
qed-table.c	block: convert bdrv_check callback to coroutine_fn	2018-03-09 15:17:47 +01:00
qed.c	block: Convert .bdrv_truncate callback to coroutine_fn	2018-06-29 14:20:56 +02:00
qed.h	qed: protect table cache with CoMutex	2017-07-17 11:34:11 +08:00
quorum.c	qapi: Drop qapi_event_send_FOO()'s Error ** argument	2018-08-28 18:21:38 +02:00
raw-format.c	block: drop empty .bdrv_close handlers	2018-08-15 12:50:39 +02:00
rbd.c	block/rbd: Attempt to parse legacy filenames	2018-09-24 23:46:05 -04:00
replication.c	replication: Switch to byte-based calls	2018-06-29 14:20:56 +02:00
sheepdog.c	block: Convert .bdrv_truncate callback to coroutine_fn	2018-06-29 14:20:56 +02:00
snapshot.c	block: make .bdrv_close optional	2018-08-15 12:50:39 +02:00
ssh.c	block: Convert .bdrv_truncate callback to coroutine_fn	2018-06-29 14:20:56 +02:00
stream.c	block/stream: refactor stream to use job callbacks	2018-09-25 15:31:15 +02:00
throttle-groups.c	throttle-groups: Don't allow timers without throttled requests	2018-08-15 12:50:39 +02:00
throttle.c	block: Use BdrvChild to discard	2018-07-10 16:01:52 +02:00
trace-events	block: Add copy offloading trace points	2018-07-10 16:01:52 +02:00
vdi.c	vdi: Use definitions from "qemu/units.h"	2018-07-02 14:45:23 +02:00
vhdx-endian.c	block: use local path for local headers	2018-05-31 04:16:06 +03:00
vhdx-log.c	block: use local path for local headers	2018-05-31 04:16:06 +03:00
vhdx.c	block: Fix typos in comments (found by codespell)	2018-07-23 16:50:43 +02:00
vhdx.h	block: vhdx - update PAYLOAD_BLOCK_UNMAPPED value to match 1.00 spec	2014-12-12 15:42:22 +00:00
vmdk.c	vmdk: align end of file to a sector boundary	2018-09-26 10:47:18 +08:00
vpc.c	block: Factor out qobject_input_visitor_new_flat_confused()	2018-06-15 14:49:44 +02:00
vvfat.c	block/vvfat: Disable debug message by default	2018-07-23 16:50:43 +02:00
vxhs.c	block: Add block-specific QDict header	2018-06-15 14:49:44 +02:00
win32-aio.c	file-win32: Switch to byte-based callbacks	2018-05-15 16:11:41 +02:00
write-threshold.c	qapi: Drop qapi_event_send_FOO()'s Error ** argument	2018-08-28 18:21:38 +02:00