chore: checkpoint before Python removal

vendor/zerocopy/benches/split_at_unchecked_dynamic_padding.x86-64.mca

@@ -0,0 +1,49 @@
+Iterations:        100
+Instructions:      500
+Total Cycles:      303
+Total uOps:        500
+
+Dispatch Width:    4
+uOps Per Cycle:    1.65
+IPC:               1.65
+Block RThroughput: 3.0
+
+
+Instruction Info:
+[1]: #uOps
+[2]: Latency
+[3]: RThroughput
+[4]: MayLoad
+[5]: MayStore
+[6]: HasSideEffects (U)
+
+[1]    [2]    [3]    [4]    [5]    [6]    Instructions:
+ 1      1     0.33                        mov	rax, rdi
+ 1      1     1.00           *            mov	qword ptr [rdi], rsi
+ 1      1     1.00           *            mov	qword ptr [rdi + 8], rdx
+ 1      1     1.00           *            mov	qword ptr [rdi + 16], rcx
+ 1      1     1.00                  U     ret
+
+
+Resources:
+[0]   - SBDivider
+[1]   - SBFPDivider
+[2]   - SBPort0
+[3]   - SBPort1
+[4]   - SBPort4
+[5]   - SBPort5
+[6.0] - SBPort23
+[6.1] - SBPort23
+
+
+Resource pressure per iteration:
+[0]    [1]    [2]    [3]    [4]    [5]    [6.0]  [6.1]  
+ -      -     0.49   0.50   3.00   1.01   1.50   1.50   
+
+Resource pressure by instruction:
+[0]    [1]    [2]    [3]    [4]    [5]    [6.0]  [6.1]  Instructions:
+ -      -     0.49   0.50    -     0.01    -      -     mov	rax, rdi
+ -      -      -      -     1.00    -     0.50   0.50   mov	qword ptr [rdi], rsi
+ -      -      -      -     1.00    -     0.50   0.50   mov	qword ptr [rdi + 8], rdx
+ -      -      -      -     1.00    -     0.50   0.50   mov	qword ptr [rdi + 16], rcx
+ -      -      -      -      -     1.00    -      -     ret