4e7e5cfe38
And make it a multiple of a 64 bytes, reducing cacheline trashing:
Before:
[acme@doppio net-2.6]$ pahole -C inet6_dev net/dccp/ipv6.o
struct inet6_dev {
<SNIP>
long unsigned int mc_maxdelay; /* 48 8 */
unsigned char mc_qrv; /* 56 1 */
unsigned char mc_gq_running; /* 57 1 */
unsigned char mc_ifc_count; /* 58 1 */
/* XXX 5 bytes hole, try to pack */
/* --- cacheline 1 boundary (64 bytes) --- */
struct timer_list mc_gq_timer; /* 64 48 */
<SNIP>
__u32 if_flags; /* 180 4 */
int dead; /* 184 4 */
u8 rndid[8]; /* 188 8 */
/* XXX 4 bytes hole, try to pack */
/* --- cacheline 3 boundary (192 bytes) was 8 bytes ago --- */
struct timer_list regen_timer; /* 200 48 */
<SNIP>
/* size: 456, cachelines: 8 */
/* sum members: 447, holes: 2, sum holes: 9 */
/* last cacheline: 8 bytes */
};
After:
net-2.6/net/ipv6/af_inet6.c:
struct inet6_dev | -8
1 struct changed
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
||
|---|---|---|
| .. | ||
| acpi | ||
| asm-alpha | ||
| asm-arm | ||
| asm-avr32 | ||
| asm-blackfin | ||
| asm-cris | ||
| asm-frv | ||
| asm-generic | ||
| asm-h8300 | ||
| asm-ia64 | ||
| asm-m32r | ||
| asm-m68k | ||
| asm-m68knommu | ||
| asm-mips | ||
| asm-parisc | ||
| asm-powerpc | ||
| asm-ppc | ||
| asm-s390 | ||
| asm-sh | ||
| asm-sparc | ||
| asm-sparc64 | ||
| asm-um | ||
| asm-v850 | ||
| asm-x86 | ||
| asm-xtensa | ||
| crypto | ||
| keys | ||
| linux | ||
| math-emu | ||
| media | ||
| mtd | ||
| net | ||
| pcmcia | ||
| rdma | ||
| rxrpc | ||
| scsi | ||
| sound | ||
| video | ||
| xen | ||
| Kbuild | ||