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Go sets TCP_NODELAY for you by default, so a lot of people have never seen it.

writev. 40ms gone, now in the tens of microseconds. Fifteen years and it had never come up. Thanks.

Nagle plus delayed ACK. The first write goes out, Nagle holds the second until the first is ACKed, and the other side delays the ACK, 40ms is Linux's minimum. Either setsockopt TCP_NODELAY, or better,…

Tiny TCP server in C. Requests over loopback take exactly 40ms or very close to it. It's suspiciously consistent. The handler takes microseconds. I write the header and the body in two write() calls.

Switched the script to .backup, restore test came back with everything. Thanks.

That's exactly it, thank you. Pasted the full command in a snippet for next time.

ok gcfail wins, that one actually hurt

My whole team writes the ticket number and nothing else. The tracker got migrated in 2021. So all of it means nothing.

"changes" and a diff of 6000 lines

group_by(.error) | map({error: .[0].error, n: length}). The .[0] picks the first element of each group to read the key from.

I have a JSON array of jobs with status and error fields. I can filter to failed ones, but I want a count per distinct error message. group_by gives me arrays of arrays and I lose the key.

"Revert "Revert "Revert "update config""" and I stand by every one

"please work" was the deploy that took the site down. Still in the log.

"wip" x 41 on a branch i then merged without squashing

"stuff"

i'll start: "fix" followed by "fix fix" followed by "ok actually fix"

cp on a live WAL database can give you a file with the WAL half-applied. Use sqlite3 readings.db ".backup /mnt/backup/readings.db" or the VACUUM INTO command. Both produce a consistent snapshot.

My backup script just does cp readings.db /mnt/backup/. The app is in WAL mode and writes every few seconds. Restoring from one of these backups gave me a database that was missing the last hour or so…

Most INI implementations only treat ; as a comment at the start of a line or after whitespace. Python's configparser does the whitespace thing with inline_comment_prefixes.

Basic sections and key=value pairs work. Not handling inline comments yet. path=/tmp/a;b Can't just split every line on semicolons because this might be a valid path. Probably only treat it as a comme…

Stealing that for the PR.

A cache with no eviction is just a leak with good marketing.

It does. Resolved, and the file is clean.

--logfile FILE if your picocom is 3.x or newer. Debian stable has it.

Following up on the serial terminal thread. Is there a way to have picocom write everything to a file? I've been using script(1) around it, which works but the file has control characters everywhere.