perf(levm): improvements to precompiles

[edg-l]

Minor improvements:

• In fill_with_zeros, when the size is already target or more avoid allocating a vec.
• Also avoided allocating vecs in other contexts.
• Improved further the modexp code, making it more predictable to compiler optimizations.
• Changed some infallible functions from returning a Result to a value directly.

Need to measure if it improves.

[github-actions]

Lines of code report

Total lines added: 19
Total lines removed: 0
Total lines changed: 19

Detailed view

+------------------------------------------+-------+------+
| File                                     | Lines | Diff |
+------------------------------------------+-------+------+
| ethrex/crates/vm/levm/src/errors.rs      | 217   | +5   |
+------------------------------------------+-------+------+
| ethrex/crates/vm/levm/src/precompiles.rs | 1080  | +14  |
+------------------------------------------+-------+------+

[github-actions]

Benchmark Results Comparison

No significant difference was registered for any benchmark run.

Detailed Results

Benchmark Results: BubbleSort

Command	Mean [s]	Min [s]	Max [s]	Relative
main_revm_BubbleSort	3.180 ± 0.016	3.164	3.217	1.00 ± 0.01
main_levm_BubbleSort	3.517 ± 0.024	3.488	3.566	1.11 ± 0.01
pr_revm_BubbleSort	3.176 ± 0.026	3.148	3.240	1.00
pr_levm_BubbleSort	3.525 ± 0.039	3.489	3.619	1.11 ± 0.02

Benchmark Results: ERC20Approval

Command	Mean [s]	Min [s]	Max [s]	Relative
main_revm_ERC20Approval	1.047 ± 0.007	1.041	1.063	1.01 ± 0.01
main_levm_ERC20Approval	1.203 ± 0.006	1.194	1.211	1.16 ± 0.01
pr_revm_ERC20Approval	1.034 ± 0.011	1.023	1.056	1.00
pr_levm_ERC20Approval	1.200 ± 0.010	1.181	1.213	1.16 ± 0.02

Benchmark Results: ERC20Mint

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
main_revm_ERC20Mint	136.2 ± 1.0	135.2	138.5	1.00
main_levm_ERC20Mint	167.3 ± 2.0	165.7	172.8	1.23 ± 0.02
pr_revm_ERC20Mint	138.0 ± 3.6	136.0	147.7	1.01 ± 0.03
pr_levm_ERC20Mint	165.6 ± 1.2	164.5	168.3	1.22 ± 0.01

Benchmark Results: ERC20Transfer

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
main_revm_ERC20Transfer	246.3 ± 13.1	241.0	283.6	1.02 ± 0.05
main_levm_ERC20Transfer	295.2 ± 1.7	292.4	297.7	1.22 ± 0.01
pr_revm_ERC20Transfer	241.8 ± 1.1	240.6	243.9	1.00
pr_levm_ERC20Transfer	295.8 ± 2.3	293.0	301.1	1.22 ± 0.01

Benchmark Results: Factorial

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
main_revm_Factorial	229.1 ± 1.9	227.6	232.7	1.00
main_levm_Factorial	313.8 ± 2.4	310.8	319.9	1.37 ± 0.02
pr_revm_Factorial	230.4 ± 1.9	228.9	234.8	1.01 ± 0.01
pr_levm_Factorial	312.5 ± 3.4	310.2	321.8	1.36 ± 0.02

Benchmark Results: FactorialRecursive

Command	Mean [s]	Min [s]	Max [s]	Relative
main_revm_FactorialRecursive	1.580 ± 0.068	1.407	1.638	1.00 ± 0.05
main_levm_FactorialRecursive	6.995 ± 0.028	6.956	7.055	4.45 ± 0.09
pr_revm_FactorialRecursive	1.573 ± 0.030	1.524	1.612	1.00
pr_levm_FactorialRecursive	6.989 ± 0.011	6.970	7.000	4.44 ± 0.09

Benchmark Results: Fibonacci

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
main_revm_Fibonacci	200.1 ± 0.4	199.5	200.8	1.00
main_levm_Fibonacci	300.8 ± 4.8	297.1	313.5	1.50 ± 0.02
pr_revm_Fibonacci	207.8 ± 14.0	200.8	240.4	1.04 ± 0.07
pr_levm_Fibonacci	299.2 ± 3.4	296.5	307.5	1.50 ± 0.02

Benchmark Results: FibonacciRecursive

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
main_revm_FibonacciRecursive	841.4 ± 16.8	815.3	868.8	1.00
main_levm_FibonacciRecursive	1117.2 ± 15.5	1103.9	1158.0	1.33 ± 0.03
pr_revm_FibonacciRecursive	843.1 ± 9.1	825.9	851.9	1.00 ± 0.02
pr_levm_FibonacciRecursive	1125.8 ± 18.2	1104.7	1153.8	1.34 ± 0.03

Benchmark Results: ManyHashes

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
main_revm_ManyHashes	8.5 ± 0.0	8.5	8.6	1.00
main_levm_ManyHashes	10.4 ± 0.1	10.3	10.6	1.22 ± 0.01
pr_revm_ManyHashes	8.5 ± 0.1	8.5	8.7	1.00 ± 0.01
pr_levm_ManyHashes	10.3 ± 0.0	10.2	10.3	1.20 ± 0.01

Benchmark Results: MstoreBench

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
main_revm_MstoreBench	265.0 ± 1.3	262.8	267.3	1.00
main_levm_MstoreBench	792.5 ± 1.9	790.5	796.9	2.99 ± 0.02
pr_revm_MstoreBench	265.3 ± 3.1	262.9	272.3	1.00 ± 0.01
pr_levm_MstoreBench	791.3 ± 2.2	789.3	796.6	2.99 ± 0.02

Benchmark Results: Push

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
main_revm_Push	288.9 ± 0.7	288.0	290.5	1.00
main_levm_Push	920.5 ± 1.7	918.8	924.1	3.19 ± 0.01
pr_revm_Push	290.1 ± 1.3	287.7	291.8	1.00 ± 0.01
pr_levm_Push	921.8 ± 5.1	916.6	934.6	3.19 ± 0.02

Benchmark Results: SstoreBench_no_opt

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
main_revm_SstoreBench_no_opt	157.3 ± 0.9	156.2	159.2	1.94 ± 0.05
main_levm_SstoreBench_no_opt	81.3 ± 1.1	80.2	83.3	1.00 ± 0.03
pr_revm_SstoreBench_no_opt	157.2 ± 0.8	156.2	158.2	1.94 ± 0.05
pr_levm_SstoreBench_no_opt	81.2 ± 2.3	79.7	87.1	1.00

[github-actions]

Benchmark Block Execution Results Comparison Against Main

Command	Mean [s]	Min [s]	Max [s]	Relative
base	161.445 ± 1.033	160.082	162.854	1.00 ± 0.01
head	161.237 ± 0.748	160.116	162.506	1.00