The real cost of random I/O

Model: @cf/meta/llama-4-scout-17b-16e-instruct lite +0.20 @cf/meta/llama-3.3-70b-instruct-fp8-fast lite +0.04 Compare

+0.20	The real cost of random I/O (vondra.me)
	102 points by jpineman 4 days ago \| 25 comments on HN \| Mild positive ~lite vlite-1.4

Summary ~lite Technology Performance Acknowledges

Analysis of Postgres random I/O costs, no direct human rights connection

EQ 0.50

SO 0.60

TD 0.70

Lite evaluation by llama-4-scout-wai · editorial channel only · no per-section breakdown available

Longitudinal 599 HN snapshots · 113 evals

Audit Trail 133 entries

2026-03-02 23:34	eval_success	Lite evaluated: Mild positive (0.20)	- -
2026-03-02 23:34	eval	Evaluated by llama-4-scout-wai: +0.20 (Mild positive) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 23:23	eval_success	Lite evaluated: Neutral (0.04)	- -
2026-03-02 23:23	eval	Evaluated by llama-3.3-70b-wai: +0.04 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 22:59	eval_success	Lite evaluated: Mild positive (0.20)	- -
2026-03-02 22:59	eval	Evaluated by llama-4-scout-wai: +0.20 (Mild positive) +0.20
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 22:47	eval_success	Lite evaluated: Neutral (0.04)	- -
2026-03-02 22:47	eval	Evaluated by llama-3.3-70b-wai: +0.04 (Neutral) +0.04
	reasoning Technical blog post on database optimization
2026-03-02 22:14	eval_success	Lite evaluated: Neutral (0.00)	- -
2026-03-02 22:14	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 22:09	eval_success	Lite evaluated: Neutral (0.00)	- -
2026-03-02 22:09	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 21:35	eval_success	Lite evaluated: Neutral (0.00)	- -
2026-03-02 21:35	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 21:31	eval_success	Lite evaluated: Neutral (0.00)	- -
2026-03-02 21:31	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 20:51	eval_success	Lite evaluated: Neutral (0.00)	- -
2026-03-02 20:51	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 20:46	eval_success	Lite evaluated: Neutral (0.00)	- -
2026-03-02 20:46	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 20:42	eval_success	Lite evaluated: Neutral (0.00)	- -
2026-03-02 20:42	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 20:01	eval_success	Lite evaluated: Neutral (0.00)	- -
2026-03-02 20:01	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 19:57	eval_success	Lite evaluated: Neutral (0.00)	- -
2026-03-02 19:57	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 19:56	eval_success	Lite evaluated: Neutral (0.00)	- -
2026-03-02 19:56	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 19:53	eval_success	Lite evaluated: Neutral (0.00)	- -
2026-03-02 19:53	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 19:18	eval_success	Lite evaluated: Neutral (0.00)	- -
2026-03-02 19:17	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 19:11	eval_success	Lite evaluated: Neutral (0.00)	- -
2026-03-02 19:11	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 19:06	eval_success	Lite evaluated: Neutral (0.00)	- -
2026-03-02 19:06	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 19:04	credit_exhausted	Credit balance too low, pausing provider for 30 min	- -
2026-03-02 18:09	eval_success	Lite evaluated: Neutral (0.00)	- -
2026-03-02 18:09	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 18:05	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 17:00	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 16:52	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 15:35	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 15:30	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 15:26	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 14:55	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 14:36	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 14:30	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 14:12	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 14:00	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 13:55	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 13:26	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 13:09	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 12:38	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 12:31	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 12:25	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 11:59	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 11:54	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 11:50	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 11:19	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 11:08	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 10:30	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 10:20	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 10:15	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 09:57	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 09:36	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 09:31	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 09:07	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 08:41	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 08:11	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 08:06	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 07:59	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 07:17	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 07:12	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 07:07	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 06:41	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 06:25	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 06:03	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 05:52	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 05:22	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 05:10	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 04:47	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 04:42	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 04:40	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 03:57	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 03:55	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 03:13	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 03:12	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 02:38	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 02:36	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 02:33	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 01:46	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 01:43	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 01:41	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 01:03	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 00:57	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 00:21	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 00:14	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-02 00:12	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-02 00:07	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 23:22	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-01 23:12	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 22:33	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-01 22:26	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 22:00	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-01 21:43	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 21:11	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-01 21:04	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 20:59	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 20:34	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-01 20:16	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 19:54	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-01 19:34	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 19:13	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-01 18:54	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 18:38	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-01 17:47	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 17:38	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-01 16:29	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 16:23	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 16:19	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-01 16:14	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-01 15:45	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 15:40	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 15:34	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-01 14:38	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 14:32	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-01 13:53	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 13:46	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-01 13:08	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 13:04	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral) 0.00
	reasoning Technical blog post on database optimization
2026-03-01 12:26	eval	Evaluated by llama-4-scout-wai: 0.00 (Neutral)
	reasoning Editorial on Postgres performance, no explicit rights stance
2026-03-01 12:25	eval	Evaluated by llama-3.3-70b-wai: 0.00 (Neutral)
	reasoning Technical blog post on database optimization

build 16573cc+nocs · deployed 2026-03-02 23:40 UTC · evaluated 2026-03-02 21:48:57 UTC