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Last-Update: 2015-05-23
Forwarded: not-needed
Author: Dmitry Smirnov <onlyjob@member.fsf.org>
Description: advise OS to dismiss cache by default
--- a/src/chunkserver/hddspacemgr.cc
+++ b/src/chunkserver/hddspacemgr.cc
@@ -3824,9 +3824,9 @@
}
void hdd_reload(void) {
TRACETHIS();
- gAdviseNoCache = cfg_getuint32("HDD_ADVISE_NO_CACHE", 0);
+ gAdviseNoCache = cfg_getuint32("HDD_ADVISE_NO_CACHE", 1);
PerformFsync = cfg_getuint32("PERFORM_FSYNC", 1);
HDDTestFreq = cfg_getuint32("HDD_TEST_FREQ",10);
@@ -3916,9 +3916,9 @@
}
lzfs_pretty_syslog(LOG_INFO, "hdd space manager: start background hdd scanning "
"(searching for available chunks)");
- gAdviseNoCache = cfg_getuint32("HDD_ADVISE_NO_CACHE", 0);
+ gAdviseNoCache = cfg_getuint32("HDD_ADVISE_NO_CACHE", 1);
HDDTestFreq = cfg_getuint32("HDD_TEST_FREQ",10);
gPunchHolesInFiles = cfg_getuint32("HDD_PUNCH_HOLES", 0);
--- a/src/data/mfschunkserver.cfg.in
+++ b/src/data/mfschunkserver.cfg.in
@@ -71,10 +71,10 @@
# HDD_TEST_FREQ = 10
## Whether to remove each chunk from page when closing it to reduce cache pressure
## generated by chunkserver, boolean (0 means "no").
-## (Default: 0)
-# HDD_ADVISE_NO_CACHE = 0
+## (Default: 1)
+# HDD_ADVISE_NO_CACHE = 1
## If enabled then chunkserver detects zero values in chunk data and frees
## corresponding file blocks (decreasing file system usage).
## This option works only on Linux
--- a/doc/mfschunkserver.cfg.5.txt
+++ b/doc/mfschunkserver.cfg.5.txt
@@ -79,9 +79,9 @@
chunk test period in seconds (default is 10)
*HDD_ADVISE_NO_CACHE*::
whether to remove each chunk from page when closing it to reduce cache pressure
-generated by chunkserver (default is 0, i.e. no)
+generated by chunkserver (default is 1, i.e. yes)
*HDD_PUNCH_HOLES*::
if enabled then chunkserver detects zero values in chunk data and frees
corresponding file blocks (decreasing file system usage). This option works only on Linux
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