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| author | Zdenek Kabelac <zkabelac@redhat.com> | 2015-07-20 16:46:21 +0200 |
|---|---|---|
| committer | Zdenek Kabelac <zkabelac@redhat.com> | 2015-08-12 14:11:16 +0200 |
| commit | 694c88e031fb44f957c75bea369b898e1dedf932 (patch) | |
| tree | 9d2ad247164b59d69b29951eb0342d2196a5759f | |
| parent | 036d90bba6c1ac76195302bc5c7f2f5ce8ad89b4 (diff) | |
| download | lvm2-694c88e031fb44f957c75bea369b898e1dedf932.tar.gz | |
cache: introduce mq and smq profiles
Add 2 demo profiles for mq and smq policies.
Show all support profilable params.
Use with: lvcreate --policy cache-mq ....
| -rw-r--r-- | WHATS_NEW | 1 | ||||
| -rw-r--r-- | conf/Makefile.in | 8 | ||||
| -rw-r--r-- | conf/cache-mq.profile | 20 | ||||
| -rw-r--r-- | conf/cache-smq.profile | 14 |
4 files changed, 41 insertions, 2 deletions
@@ -1,5 +1,6 @@ Version 2.02.128 - =================================== + Add demo cache-mq and cache-smq profiles. Add cmd profilable allocation/cache_policy,cache_settings,cache_mode. Require cache_check 0.5.4 for use of --clear-needs-check-flag. Fix lvmetad udev rules to not override SYSTEMD_WANTS, add the service instead. diff --git a/conf/Makefile.in b/conf/Makefile.in index 43d5f75ee..128395e3f 100644 --- a/conf/Makefile.in +++ b/conf/Makefile.in @@ -1,5 +1,5 @@ # -# Copyright (C) 2004-2010 Red Hat, Inc. All rights reserved. +# Copyright (C) 2004-2015 Red Hat, Inc. All rights reserved. # # This file is part of LVM2. # @@ -20,7 +20,11 @@ CONFDEST=lvm.conf CONFLOCAL=lvmlocal.conf PROFILE_TEMPLATES=command_profile_template.profile metadata_profile_template.profile -PROFILES=$(PROFILE_TEMPLATES) $(srcdir)/thin-generic.profile $(srcdir)/thin-performance.profile +PROFILES=$(PROFILE_TEMPLATES) \ + $(srcdir)/cache-mq.profile \ + $(srcdir)/cache-smq.profile \ + $(srcdir)/thin-generic.profile \ + $(srcdir)/thin-performance.profile include $(top_builddir)/make.tmpl diff --git a/conf/cache-mq.profile b/conf/cache-mq.profile new file mode 100644 index 000000000..3c90331d1 --- /dev/null +++ b/conf/cache-mq.profile @@ -0,0 +1,20 @@ +# Demo configuration 'mq' cache policy +# +# Note: This policy has been deprecated in favor of the smq policy +# keyword "default" means, setting is left with kernel defaults. +# + +allocation { + cache_pool_chunk_size = 64 + cache_mode = "writethrough" + cache_policy = "mq" + cache_settings { + mq { + sequential_threshold = "default" # #nr_sequential_ios + random_threshold = "default" # #nr_random_ios + read_promote_adjustment = "default" + write_promote_adjustment = "default" + discard_promote_adjustment = "default" + } + } +} diff --git a/conf/cache-smq.profile b/conf/cache-smq.profile new file mode 100644 index 000000000..c0d6266f5 --- /dev/null +++ b/conf/cache-smq.profile @@ -0,0 +1,14 @@ +# Demo configuration 'smq' cache policy +# +# The stochastic multi-queue (smq) policy addresses some of the problems +# with the multiqueue (mq) policy and uses less memory. +# + +allocation { + cache_pool_chunk_size = 64 + cache_mode = "writethrough" + cache_policy = "smq" + cache_settings { + # currently no settins for "smq" policy + } +} |