diff options
| author | Eric Dumazet <dada1@cosmosbay.com> | 2005-08-26 19:05:31 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2005-08-29 23:11:18 (GMT) |
| commit | ba89966c1984513f4f2cc0a6c182266be44ddd03 (patch) | |
| tree | 6e5766fc5c287708c03e0a162531dfd4785b0703 /net/dccp | |
| parent | 29cb9f9c5502f6218cd3ea574efe46a5e55522d2 (diff) | |
| download | linux-ba89966c1984513f4f2cc0a6c182266be44ddd03.tar.xz | |
[NET]: use __read_mostly on kmem_cache_t , DEFINE_SNMP_STAT pointers
This patch puts mostly read only data in the right section
(read_mostly), to help sharing of these data between CPUS without
memory ping pongs.
On one of my production machine, tcp_statistics was sitting in a
heavily modified cache line, so *every* SNMP update had to force a
reload.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp')
| -rw-r--r-- | net/dccp/ccids/ccid3.c | 2 | ||||
| -rw-r--r-- | net/dccp/proto.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c index fe4cc85..cf93b01 100644 --- a/net/dccp/ccids/ccid3.c +++ b/net/dccp/ccids/ccid3.c @@ -85,7 +85,7 @@ static int ccid3_debug; static struct dccp_tx_hist *ccid3_tx_hist; static struct dccp_rx_hist *ccid3_rx_hist; -static kmem_cache_t *ccid3_loss_interval_hist_slab; +static kmem_cache_t *ccid3_loss_interval_hist_slab __read_mostly; static inline struct ccid3_loss_interval_hist_entry * ccid3_loss_interval_hist_entry_new(const unsigned int __nocast prio) diff --git a/net/dccp/proto.c b/net/dccp/proto.c index 600dda5..f97e92e 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -39,7 +39,7 @@ #include "ccid.h" #include "dccp.h" -DEFINE_SNMP_STAT(struct dccp_mib, dccp_statistics); +DEFINE_SNMP_STAT(struct dccp_mib, dccp_statistics) __read_mostly; atomic_t dccp_orphan_count = ATOMIC_INIT(0); |