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| author | Sadeep Madurange <sadeep@asciimx.com> | 2026-03-08 18:44:41 +0800 |
|---|---|---|
| committer | Sadeep Madurange <sadeep@asciimx.com> | 2026-03-09 12:51:30 +0800 |
| commit | b9f969385c11ee0d1c96f8f2595f44b1d79e463b (patch) | |
| tree | 7d38d36840cd32aa670cb65290206cab6fc585c2 | |
| parent | d56b5b81a8c7247e076a85d9aa5cf28b427a73b9 (diff) | |
| download | www-b9f969385c11ee0d1c96f8f2595f44b1d79e463b.tar.gz | |
Add mmap details to site search.
| -rw-r--r-- | _log/site-search.md | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/_log/site-search.md b/_log/site-search.md index e9137de..20c66de 100644 --- a/_log/site-search.md +++ b/_log/site-search.md @@ -60,8 +60,6 @@ read($fh_cp, my $text, $query_len); Small seek/reads are fast on modern SSDs; keeps memory footprint small. -NOTE: mmap. - Benchmarks on T490 (i7-10510U, OpenBSD 7.8, article size: 16 KB) against linear regex search: @@ -89,6 +87,10 @@ regex search: - Search (SA): 0.0161 s - Search (Regex): 0.9120 s +Seek/read consistently outperformed mmap at <1k files. At 10k, mmap was +occasionally faster (~200 µs), but used more memory—possibly OpenBSD's VM +security trade-offs. Results may vary by OS. + Security: httpd, slowcgi, Perl in OpenBSD base system. File system permissions govern access. Runs in chroot. @@ -96,9 +98,8 @@ Resource exhaustion and XSS attacks are inherent. Lock-file semaphores limit concurrent searches. Query length (64B) and result set (20) are capped. All output is HTML-escaped to prevent XSS. -Warranty: 10,000 / 12 → 833 years. - -Next: inverted index, release date: Anno Domini 2859. +Warranty: 10,000 / 12 → 833 years. <br> +Next release: inverted index—Anno Domini 2859. Commit: <a href="https://git.asciimx.com/www/commit/?h=term&id=6da102d6e0494a3eac3f05fa3b2cdcc25ba2754e" |