![]() Daemons are gonna daemon regardless of the user load. Power usage at idle is usually low but even that's unpredictable. I've already got Telegraf on the RPis sending basic host metrics to an InfluxDB instance so that script just gets called by an exec input to generate and persist the data for monitoring or analysis.Įventually I'd love to write (or contribute to) a proper Golang Telegraf plug-in that just reads from the VC mailbox directly but that's still on the back burner.Īs far as actual power consumption during use, I’ve recently started running tests using a decent USB power meter (WITRN/Qway U2 and X models, in particular) to monitor load over time while running various workloads on a Pi Zero W, a Pi 3B+ and a 4GB Pi 4. ![]() To monitor the throttled bitflags, which also report thermal throttling, I wrote a basic shell script that just converts the hex to bin then returns a Grok-ready string with the flags as booleans. I haven’t found an authoritative source but generally the Pi’s power management system starts complaining (flipping the “undervolt since boot” bitflag in “vcgencmd get_throttled”) around 4.6-4.7V Several I’ve bought drop as low as 4.1V at just 2A load which will almost definitely make any Pi very unhappy. As load goes up, voltage tends to drop slowly at first, then heavily at a certain point. ![]() This can be seen pretty easily using a cheap USB DC load. RPi power consumption and power supply is a bit more complicated than it seems on the surface.Ī large problem is that even “3A rated" supplies suffer large voltage droop under load. ![]()
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![]() ![]() ![]() Here's a screen shot of the document after that search-and-replace: Doc still runs into one large paragraph but with dummy LFs Incidentally, that's a space in the "Replace with" box. Try this yourself if you're not convinced. If I had done this step before the search-and-replace on the double line feed, the entire document would run into one large paragraph. Next, search for the single occurrence of the line feed, and replace with a space: That's a space in the "Replace with" box In the meantime, here's what the document will look like: Document after replacing double LFs with a placeholder I did this first instead of the single line breaks between lines within a paragraph. The regular expression for a line feed is \n. For this particular document, I chose "NewParagraphPlaceHolder": Search for double occurrences of LF But that's me - you can always just download the file and edit it directly.įirst thing to do is look for the double occurrences of the line feed (or new line, or spaces, if you prefer) that separate paragraphs, then change those to a sequence of characters that couldn't possibly appear in the text. If I had simply downloaded the file then opened it in Writer, it would've retained its Google Docs formatting, and I preferred to use my own, based on my style sheet. More precisely, I copied the text from Google Docs, then pasted it into a new OOo Writer document. To help you see regular expressions at work, I created the Google document below from a GMail message: Original text as imported from Google Docs Then I remembered Writer's Regular expressions option in the search dialog: Writer's search-and-replace 10 times my ticket was closed in 10 years telling me its not important feature that needs attention. I have opened 10 tickets with open office so far since it was star office and it cannot do basic new line search and replace. An anonymous user left a comment claiming that he had opened 10 tickets regarding basic new-line search-and-replace. I remembered this when I read Optimise by Sukrit Dhandania in Linux User |