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| author |  Li Dongyang <dongyang.li@anu.edu.au>
| 2016-12-02 19:53:17 -0500 |
|---|---|---|
| committer |  Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| 2016-12-06 10:54:33 +0100 |
| commit | 817990ba1a1545875fed01a9014ac7f78dedf16d (patch) | |
| tree | 8e9157ec764d161324353729e9d1a365a957dbef /drivers/staging | |
| parent | staging: lustre: llite: Add client mount opt to ignore suppress_pings (diff) | |
| download | linux-817990ba1a1545875fed01a9014ac7f78dedf16d.tar.gz linux-817990ba1a1545875fed01a9014ac7f78dedf16d.tar.bz2 linux-817990ba1a1545875fed01a9014ac7f78dedf16d.zip | |
staging: lustre: obdclass: limit lu_site hash table size on clients
Allocating a big hash table using the current formula
does not really work for clients. We will create new
hash table for each mount on a single client which is
a lot of memory more than expected.
This patch limits the hash table up to 8M for clients,
which has 524288 entries.
Signed-off-by: Li Dongyang <dongyang.li@anu.edu.au>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7689
Reviewed-on: http://review.whamcloud.com/18048
Reviewed-by: Fan Yong <fan.yong@intel.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/lustre/lustre/obdclass/lu_object.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c index a02aaa3a3b37..80e09846e3be 100644 --- a/drivers/staging/lustre/lustre/obdclass/lu_object.c +++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c @@ -68,6 +68,7 @@ enum { #define LU_SITE_BITS_MIN 12 #define LU_SITE_BITS_MAX 24 +#define LU_SITE_BITS_MAX_CL 19 /** * total 256 buckets, we don't want too many buckets because: * - consume too much memory @@ -878,6 +879,9 @@ static unsigned long lu_htable_order(struct lu_device *top) unsigned long cache_size; unsigned long bits; + if (!strcmp(top->ld_type->ldt_name, LUSTRE_VVP_NAME)) + bits_max = LU_SITE_BITS_MAX_CL; + /* * Calculate hash table size, assuming that we want reasonable * performance when 20% of total memory is occupied by cache of |