SASS instruction histogram for kernel flash_attn_persistent (kernels/attention/flash_attention/flash_persistent.sm_86.cubin)
Total instructions: 3288
HMMA: 64
IMMA: 0
LDSM: 48
LDS: 239
STS: 206
LDGSTS: 0
LDG: 30
STG: 32
FFMA: 70
FADD: 305
FMUL: 416
FSEL: 0
MUFU: 118
SHFL: 161
IADD3: 87
IMAD: 228
ISETP: 71
LOP3: 45
BRA: 76
EXIT: 1
BAR: 6
BARRIER: 0
WARPSYNC: 5
NOP: 15
S2R: 4
Other: 1061
Useful instructions: 26%