SASS instruction histogram for kernel flash_attn_bc128 (kernels/attention/flash_attention/flash_br16_bc128.sm_86.cubin)
Total instructions: 4080
HMMA: 128
IMMA: 0
LDSM: 96
LDS: 236
STS: 283
LDGSTS: 0
LDG: 30
STG: 32
FFMA: 70
FADD: 433
FMUL: 640
FSEL: 0
MUFU: 180
SHFL: 161
IADD3: 96
IMAD: 154
ISETP: 59
LOP3: 42
BRA: 58
EXIT: 17
BAR: 4
BARRIER: 0
WARPSYNC: 5
NOP: 16
S2R: 7
Other: 1333
Useful instructions: 31.2%