.NET 10 P1 -- Runtime and Libraries changes

[richlander]

No description provided.

[carlossanlop]

cc @edwardneal we're including your excellent contributions in the prev1 release notes. If you have any suggestions to improve the description of the PRs, feel free to provide them.

[edwardneal]

Thanks @carlossanlop, that's great news. I've not got anything to add to the release notes, but have re-run the benchmarks with both changes merged.

PR 103153, ReadZipArchive: 18% reduction in execution time, 18% reduction in memory usage

Method	Job	Runtime	NumberOfFiles	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Gen2	Allocated	Alloc Ratio
Benchmark	Baseline	.NET 9.0	2	1,178.6 ns	23.23 ns	22.81 ns	1.00	0.03	0.3700	-	-	1.52 KB	1.00
Benchmark	CoreRun	.NET 10.0	2	821.6 ns	12.45 ns	11.65 ns	0.70	0.02	0.2899	-	-	1.19 KB	0.78
Benchmark	Baseline	.NET 9.0	10	4,205.5 ns	62.41 ns	55.33 ns	1.00	0.02	1.4954	-	-	6.13 KB	1.00
Benchmark	CoreRun	.NET 10.0	10	3,467.5 ns	67.25 ns	66.05 ns	0.82	0.02	1.2054	-	-	4.93 KB	0.80
Benchmark	Baseline	.NET 9.0	25	10,201.5 ns	190.59 ns	187.18 ns	1.00	0.02	3.5095	-	-	14.38 KB	1.00
Benchmark	CoreRun	.NET 10.0	25	8,210.2 ns	152.35 ns	142.51 ns	0.81	0.02	2.8229	-	-	11.54 KB	0.80
Benchmark	Baseline	.NET 9.0	50	20,152.7 ns	333.29 ns	311.76 ns	1.00	0.02	7.0496	-	-	28.91 KB	1.00
Benchmark	CoreRun	.NET 10.0	50	20,109.1 ns	517.18 ns	1,500.43 ns	1.00	0.08	5.7068	-	-	23.34 KB	0.81
Benchmark	Baseline	.NET 9.0	100	46,986.2 ns	923.08 ns	1,906.33 ns	1.00	0.06	14.2822	0.1221	-	58.42 KB	1.00
Benchmark	CoreRun	.NET 10.0	100	37,767.2 ns	752.51 ns	1,554.06 ns	0.81	0.05	11.5967	0.0610	-	47.38 KB	0.81
Benchmark	Baseline	.NET 9.0	250	115,159.8 ns	2,211.52 ns	2,271.07 ns	1.00	0.03	34.5459	0.1221	-	141.42 KB	1.00
Benchmark	CoreRun	.NET 10.0	250	94,148.7 ns	1,842.33 ns	3,414.87 ns	0.82	0.03	27.8320	0.3662	-	113.97 KB	0.81
Benchmark	Baseline	.NET 9.0	500	241,338.5 ns	4,726.33 ns	7,896.64 ns	1.00	0.05	69.8242	0.4883	-	285.86 KB	1.00
Benchmark	CoreRun	.NET 10.0	500	184,869.9 ns	2,969.04 ns	4,162.18 ns	0.77	0.03	56.1523	0.7324	-	231.06 KB	0.81
Benchmark	Baseline	.NET 9.0	1000	510,114.6 ns	10,092.12 ns	20,386.57 ns	1.00	0.05	114.2578	72.2656	-	577.2 KB	1.00
Benchmark	CoreRun	.NET 10.0	1000	404,349.3 ns	7,289.88 ns	16,153.88 ns	0.79	0.04	93.2617	52.7344	-	467.72 KB	0.81
Benchmark	Baseline	.NET 9.0	10000	13,950,239.9 ns	273,372.39 ns	345,728.57 ns	1.00	0.03	1000.0000	687.5000	218.7500	5786.24 KB	1.00
Benchmark	CoreRun	.NET 10.0	10000	10,911,298.0 ns	204,013.47 ns	226,760.43 ns	0.78	0.02	843.7500	609.3750	250.0000	4692.19 KB	0.81

PR 103153, CreateZipArchive: 23-35% reduction in execution time, 2% reduction in memory usage

NB: There's only a 2% reduction in memory usage because overall memory usage has ballooned in both the before and after cases. I'm pretty sure this is fine - zlib-ng seems to have a bimodal execution time on my machine and this skews the benchmark, so I disabled compression of the newly-added entries.

Method	Job	Runtime	NumberOfFiles	Mean	Error	StdDev	Median	Ratio	RatioSD	Gen0	Gen1	Allocated	Alloc Ratio
Benchmark	Baseline	.NET 9.0	2	2.729 μs	0.0538 μs	0.0449 μs	2.706 μs	1.00	0.02	2.2697	-	9.28 KB	1.00
Benchmark	CoreRun	.NET 10.0	2	1.665 μs	0.0256 μs	0.0239 μs	1.659 μs	0.61	0.01	2.2259	-	9.1 KB	0.98
Benchmark	Baseline	.NET 9.0	10	10.341 μs	0.1988 μs	0.2289 μs	10.266 μs	1.00	0.03	9.7046	-	39.76 KB	1.00
Benchmark	CoreRun	.NET 10.0	10	7.937 μs	0.1514 μs	0.2487 μs	7.831 μs	0.77	0.03	9.5215	-	39.02 KB	0.98
Benchmark	Baseline	.NET 9.0	25	24.677 μs	0.4903 μs	0.8842 μs	24.563 μs	1.00	0.05	20.1721	3.3569	82.92 KB	1.00
Benchmark	CoreRun	.NET 10.0	25	18.247 μs	0.3474 μs	0.3412 μs	18.192 μs	0.74	0.03	19.7754	3.2654	81.13 KB	0.98
Benchmark	Baseline	.NET 9.0	50	67.420 μs	5.7447 μs	16.9384 μs	57.185 μs	1.05	0.35	40.5273	13.4888	166.71 KB	1.00
Benchmark	CoreRun	.NET 10.0	50	41.443 μs	0.7212 μs	0.8306 μs	41.493 μs	0.65	0.13	39.6729	0.0610	163.16 KB	0.98

PR 102704, AddEntryToLargeZipArchive (zero-length entry, 2GB ZIP file): 99.8% reduction in execution time, 99.9996% reduction in memory usage

Method	Job	Runtime	Mean	Error	StdDev	Ratio	RatioSD	Gen0	Gen1	Gen2	Allocated	Alloc Ratio
Benchmark	Baseline	.NET 9.0	4.187 s	83.3751 ms	177.6792 ms	1.002	0.06	1000.0000	1000.0000	1000.0000	2 GB	1.000
Benchmark	CoreRun	.NET 10.0	9.452 ms	0.1583 ms	0.1322 ms	0.002	0.00	-	-	-	7.01 KB	0.000

[richlander]

If there are community PRs, at-mention the folks and get them added. We can continue to use the same general format as we've used in the past where we give community credit.