Performance measurements › x86_1 › hash-16 · system: x86_1 · arm_1

hash-16 LLH — performance on x86-64 (system x86_1)

Independent measurement following the structure of the NICCS x86 self-assessment guide, §3.5 (1)–(7). Not a submitter self-assessment.

1. Basic information

Category: cryptographic hash algorithm; function: hash
Algorithm: LLH
Implementation versions measured: reference
Parameter sets: LLH-256, LLH-512, LLH-768, LLH-1024
Security evaluation: hash-16 report
Measurement method: x86_1 method
Submission: NICCS page

2. Assessment environment

item	value
processor	12th Gen Intel(R) Core(TM) i7-12700 (CPU 2, one core)
clock	max 2.10 GHz, governor performance, turbo off, SMT off
memory	31788 MiB
OS / kernel	Debian GNU/Linux 13 (trixie) / 6.12.107+deb13-amd64
compiler / build tool	gcc (Debian 14.2.0-19) 14.2.0 / cmake version 3.31.6
campaign start / end (UTC)	2026-09-25T10:02:21 / 2026-09-28T10:51:21

3. Functional testing (KAT)

Each library was checked against the submitted KAT vectors (SHA-256 manifest hash-16/kat.sha256 in the harness) before timing.

instance	build flags	KAT
`LLH-256`	guide	PASS
`LLH-512`	guide	PASS
`LLH-768`	guide	PASS
`LLH-1024`	guide	PASS

4. Performance

instance	message	mean cycles	cycles/byte	mean time	MB/s	n
`LLH-256`	32 B	2006	62.7	961 ns	33.3	100000 (5 × 20000)
`LLH-256`	128 B	5098	39.8	2.44 µs	52.5	100000 (5 × 20000)
`LLH-256`	512 B	17.8 k	34.8	8.52 µs	60.1	100000 (5 × 20000)
`LLH-256`	1024 B	34.2 k	33.4	16.4 µs	62.6	100000 (5 × 20000)
`LLH-256`	4096 B	135.3 k	33.0	64.6 µs	63.4	66225 (5 × 13245)
`LLH-256`	8192 B	269.3 k	32.9	129 µs	63.7	38045 (5 × 7609)
`LLH-256`	16384 B	537.8 k	32.8	257 µs	63.8	19510 (5 × 3902)
`LLH-256`	65536 B	2.14 M	32.7	1.02 ms	64.1	4565 (5 × 913)
`LLH-512`	32 B	2993	93.5	1.43 µs	22.3	100000 (5 × 20000)
`LLH-512`	128 B	4482	35.0	2.14 µs	59.7	100000 (5 × 20000)
`LLH-512`	512 B	13.7 k	26.8	6.57 µs	78.0	100000 (5 × 20000)
`LLH-512`	1024 B	26.4 k	25.8	12.6 µs	81.2	100000 (5 × 20000)
`LLH-512`	4096 B	102.2 k	25.0	48.8 µs	83.9	72390 (5 × 14478)
`LLH-512`	8192 B	204.4 k	25.0	97.7 µs	83.9	46055 (5 × 9211)
`LLH-512`	16384 B	407.6 k	24.9	195 µs	84.2	21215 (5 × 4243)
`LLH-512`	65536 B	1.62 M	24.7	774 µs	84.6	5770 (5 × 1154)
`LLH-768`	32 B	10.3 k	323.1	4.94 µs	6.5	100000 (5 × 20000)
`LLH-768`	128 B	15.5 k	121.4	7.43 µs	17.2	100000 (5 × 20000)
`LLH-768`	512 B	36.7 k	71.7	17.5 µs	29.2	100000 (5 × 20000)
`LLH-768`	1024 B	62.3 k	60.8	29.7 µs	34.4	100000 (5 × 20000)
`LLH-768`	4096 B	231.8 k	56.6	111 µs	37.0	40905 (5 × 8181)
`LLH-768`	8192 B	459.3 k	56.1	219 µs	37.3	23275 (5 × 4655)
`LLH-768`	16384 B	914.9 k	55.8	437 µs	37.5	9230 (5 × 1846)
`LLH-768`	65536 B	3.68 M	56.2	1.76 ms	37.3	3090 (5 × 618)
`LLH-1024`	32 B	10.3 k	322.5	4.94 µs	6.5	100000 (5 × 20000)
`LLH-1024`	128 B	10.5 k	82.0	5.03 µs	25.5	100000 (5 × 20000)
`LLH-1024`	512 B	26.4 k	51.5	12.6 µs	40.6	100000 (5 × 20000)
`LLH-1024`	1024 B	47.8 k	46.6	22.8 µs	44.8	100000 (5 × 20000)
`LLH-1024`	4096 B	174.8 k	42.7	83.6 µs	49.0	55505 (5 × 11101)
`LLH-1024`	8192 B	346.0 k	42.2	166 µs	49.5	29560 (5 × 5912)
`LLH-1024`	16384 B	685.1 k	41.8	328 µs	50.0	14840 (5 × 2968)
`LLH-1024`	65536 B	2.74 M	41.8	1.31 ms	50.0	3875 (5 × 775)

5. Resource consumption

Static memory is approximated by the library's loadable ELF segments; peak memory is the process high-water mark (VmHWM) including the benchmark driver and libc, so both are upper-bound proxies rather than isolated algorithm memory.

instance	operation	static: ELF image (bytes)	baseline RSS	peak RSS
`LLH-256`	hash_32	12737	1692 KiB	1756 KiB
`LLH-256`	hash_128	12737	1680 KiB	1744 KiB
`LLH-256`	hash_512	12737	1692 KiB	1768 KiB
`LLH-256`	hash_1024	12737	1692 KiB	1768 KiB
`LLH-256`	hash_4096	12737	1680 KiB	1764 KiB
`LLH-256`	hash_8192	12737	1692 KiB	1756 KiB
`LLH-256`	hash_16384	12737	1688 KiB	1752 KiB
`LLH-256`	hash_65536	12737	1752 KiB	1816 KiB
`LLH-512`	hash_32	13129	1676 KiB	1768 KiB
`LLH-512`	hash_128	13129	1680 KiB	1744 KiB
`LLH-512`	hash_512	13129	1656 KiB	1780 KiB
`LLH-512`	hash_1024	13129	1672 KiB	1780 KiB
`LLH-512`	hash_4096	13129	1676 KiB	1740 KiB
`LLH-512`	hash_8192	13129	1672 KiB	1788 KiB
`LLH-512`	hash_16384	13129	1704 KiB	1792 KiB
`LLH-512`	hash_65536	13129	1756 KiB	1824 KiB
`LLH-768`	hash_32	15497	1684 KiB	1780 KiB
`LLH-768`	hash_128	15497	1668 KiB	1772 KiB
`LLH-768`	hash_512	15497	1672 KiB	1780 KiB
`LLH-768`	hash_1024	15497	1692 KiB	1772 KiB
`LLH-768`	hash_4096	15497	1692 KiB	1756 KiB
`LLH-768`	hash_8192	15497	1688 KiB	1780 KiB
`LLH-768`	hash_16384	15497	1688 KiB	1800 KiB
`LLH-768`	hash_65536	15497	1740 KiB	1804 KiB
`LLH-1024`	hash_32	15977	1668 KiB	1776 KiB
`LLH-1024`	hash_128	15977	1688 KiB	1752 KiB
`LLH-1024`	hash_512	15977	1648 KiB	1776 KiB
`LLH-1024`	hash_1024	15977	1672 KiB	1736 KiB
`LLH-1024`	hash_4096	15977	1696 KiB	1760 KiB
`LLH-1024`	hash_8192	15977	1652 KiB	1780 KiB
`LLH-1024`	hash_16384	15977	1692 KiB	1760 KiB
`LLH-1024`	hash_65536	15977	1736 KiB	1828 KiB

7. Raw evidence index

Paths are relative to performance/data/x86_1/ in the harness; each JSON file records its commands, environment and trials.

instance	item	file
`LLH-256`	KAT log (sha256 `978f6d2cfe261bd0…`)	`kat/hash-16/LLH-256.log`
`LLH-256`	timing hash_1024	`records/hash-16/LLH-256__hash_1024.json`
`LLH-256`	timing hash_128	`records/hash-16/LLH-256__hash_128.json`
`LLH-256`	timing hash_16384	`records/hash-16/LLH-256__hash_16384.json`
`LLH-256`	timing hash_32	`records/hash-16/LLH-256__hash_32.json`
`LLH-256`	timing hash_4096	`records/hash-16/LLH-256__hash_4096.json`
`LLH-256`	timing hash_512	`records/hash-16/LLH-256__hash_512.json`
`LLH-256`	timing hash_65536	`records/hash-16/LLH-256__hash_65536.json`
`LLH-256`	timing hash_8192	`records/hash-16/LLH-256__hash_8192.json`
`LLH-512`	KAT log (sha256 `68e4bcb43caea355…`)	`kat/hash-16/LLH-512.log`
`LLH-512`	timing hash_1024	`records/hash-16/LLH-512__hash_1024.json`
`LLH-512`	timing hash_128	`records/hash-16/LLH-512__hash_128.json`
`LLH-512`	timing hash_16384	`records/hash-16/LLH-512__hash_16384.json`
`LLH-512`	timing hash_32	`records/hash-16/LLH-512__hash_32.json`
`LLH-512`	timing hash_4096	`records/hash-16/LLH-512__hash_4096.json`
`LLH-512`	timing hash_512	`records/hash-16/LLH-512__hash_512.json`
`LLH-512`	timing hash_65536	`records/hash-16/LLH-512__hash_65536.json`
`LLH-512`	timing hash_8192	`records/hash-16/LLH-512__hash_8192.json`
`LLH-768`	KAT log (sha256 `eceffc3393ccb92f…`)	`kat/hash-16/LLH-768.log`
`LLH-768`	timing hash_1024	`records/hash-16/LLH-768__hash_1024.json`
`LLH-768`	timing hash_128	`records/hash-16/LLH-768__hash_128.json`
`LLH-768`	timing hash_16384	`records/hash-16/LLH-768__hash_16384.json`
`LLH-768`	timing hash_32	`records/hash-16/LLH-768__hash_32.json`
`LLH-768`	timing hash_4096	`records/hash-16/LLH-768__hash_4096.json`
`LLH-768`	timing hash_512	`records/hash-16/LLH-768__hash_512.json`
`LLH-768`	timing hash_65536	`records/hash-16/LLH-768__hash_65536.json`
`LLH-768`	timing hash_8192	`records/hash-16/LLH-768__hash_8192.json`
`LLH-1024`	KAT log (sha256 `389f632c0669f0e6…`)	`kat/hash-16/LLH-1024.log`
`LLH-1024`	timing hash_1024	`records/hash-16/LLH-1024__hash_1024.json`
`LLH-1024`	timing hash_128	`records/hash-16/LLH-1024__hash_128.json`
`LLH-1024`	timing hash_16384	`records/hash-16/LLH-1024__hash_16384.json`
`LLH-1024`	timing hash_32	`records/hash-16/LLH-1024__hash_32.json`
`LLH-1024`	timing hash_4096	`records/hash-16/LLH-1024__hash_4096.json`
`LLH-1024`	timing hash_512	`records/hash-16/LLH-1024__hash_512.json`
`LLH-1024`	timing hash_65536	`records/hash-16/LLH-1024__hash_65536.json`
`LLH-1024`	timing hash_8192	`records/hash-16/LLH-1024__hash_8192.json`

Scripts: performance/campaign.py, performance/ngcc_perf.c, performance/hashprof/ in the harness.