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    SubjectRe: local_add_return
    From
    From: Rusty Russell <rusty@rustcorp.com.au>
    Date: Tue, 16 Dec 2008 17:03:00 +1030

    > Now, I posted a benchmark patch before for archs to test. I'm interested
    > in Sparc64.

    Here ya go:

    UltraSPARC-IIIi:

    atomic_long: local_inc=8180000021/243
    local_add=7469999999/222
    cpu_local_inc=1260000001/37
    local_read=5690000000/169
    (total was 1326071152640)

    irqsave/restore:
    local_inc=6909999997/205
    local_add=6899999996/205
    cpu_local_inc=860000000/25
    local_read=5690000005/169
    (total was 1326071152640)

    trivalue:
    local_inc=6490000000/193
    local_add=6500000000/193
    cpu_local_inc=370000002/11
    local_read=7419999998/221
    (total was 1326071152640)

    local_t:
    local_inc=7440000000/221
    local_add=7440000000/221
    cpu_local_inc=1260000004/37
    local_read=5689999997/169
    (total was 1326071152640, warm_total 34443624448)

    Niagara-2:

    atomic_long:
    local_inc=6960000013/207
    local_add=6940000002/206
    cpu_local_inc=2440000002/72
    local_read=5390000000/160
    (total was 1326071152640)

    irqsave/restore:
    local_inc=7660000002/228
    local_add=7669999999/228
    cpu_local_inc=2650000004/78
    local_read=5379999999/160
    (total was 1326071152640)

    trivalue:
    local_inc=5789999998/172
    local_add=5789999995/172
    cpu_local_inc=689999994/20
    local_read=7470000000/222
    (total was 1326071152640)

    local_t:
    local_inc=6940000000/206
    local_add=6950000000/207
    cpu_local_inc=2460000000/73
    local_read=5390000004/160
    (total was 1326071152640, warm_total 34443624448)



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