If gigabit ethernet is not fast enough for your home, what about 10 Gb networking?
I rebuilt my file server recently and spent the next two days sending 7 TB of data from my laptop to the NAS, ugh!
I bought a server that has two onboard 10 Gb ethernet ports and 80 TB of storage. I want to connect two laptops, each with 8+ TB of storage. My ISP offers 1.5 gigabit through a widget that has a 2.5 Gb ethernet port. I have other widgets that can only do gigabit (steam deck, more laptops).
problem: find the smallest diff between a file on the server and client, so you can send only the change. rsync does this!
Decades ago, a sliding window was hashed, moving byte by byte. This was very slow. (but can use many cores!)
The naive approach of comparing 8k chunks fails if someone added a single new byte at the beginning. This is called the boundary shift problem.
Content defined chunking (CDC) attempts to describe chunks by their content,
You have (my) permission to do anything that you consider beneficial and useful, and you have the ability as well!
All the rules we think are in place are just illusions
if something isn’t being done already, it’s likely there’s no incentive to do that thing (see https://www.noidea.dog/glue ) don’t sacrifice yourself and your future, learn from my mistakes
| line | value | text | |
| 1 | 50000. | adjusted gross income you expect in 2025 | |
| ^ | L1 | ||
| 2a | 15000 | deductions |
| line | value | text | |
|---|---|---|---|
| 1a | 46000. | taxable 5% income ($4000 rent deduction) |
| (defun screenshot-svg () | |
| "Save a screenshot of the current frame as an SVG image. | |
| Saves to a temp file and puts the filename in the kill ring." | |
| (interactive) | |
| (let* ((filename (make-temp-file "Emacs" nil ".svg")) | |
| (data (x-export-frames nil 'svg))) | |
| (with-temp-file filename | |
| (insert data)) | |
| (kill-new filename) | |
| (message filename))) |
| ;; run-with-timer is meant to be used when delay is specified in seconds | |
| ;; this gonna be a list of pairs of | |
| ;; (cons (time-convert nil 'integer) (current-idle-time)) | |
| ;; that is, (now-in-unix-time, emacs-idle-time-in-seconds) | |
| (defvar fl/activity-intervals nil) | |
| ;; looks like timers are | |
| ;; 1. a timer variable | |
| (defvar fl/write-interval-timer-var nil) | |
| (defun fl/write-interval () |
| (defconst shapr-idle-duration 60) | |
| (defvar shapr-busy-timer nil) | |
| (defun shapr-busy () | |
| (when shapr-busy-timer | |
| (cancel-timer shapr-busy-timer)) | |
| ;; Do some http stuff here | |
| (setq shapr-busy-timer | |
| (run-with-idle-timer |
| (use-package haskell-mode | |
| :ensure t | |
| :delight " hsk" | |
| :bind (:map haskell-mode-map ([(meta .)] . lsp-find-definition)) | |
| :init | |
| (progn | |
| (add-hook 'haskell-mode-hook 'turn-on-haskell-doc-mode) | |
| (add-hook 'haskell-mode-hook #'lsp-deferred) | |
| (add-hook 'haskell-literate-mode-hook #'lsp) | |
| (add-hook 'haskell-mode-hook 'turn-on-haskell-indent) |
| /* expand.c */ | |
| /* Copyright 1994 by Philip Gage */ | |
| #include <stdio.h> | |
| /* Decompress data from input to output */ | |
| void expand (FILE *input, FILE *output) | |
| { | |
| unsigned char left[256], right[256], stack[30]; | |
| short int c, count, i, size; |
| /* compress.c */ | |
| /* Copyright 1994 by Philip Gage */ | |
| #include <stdio.h> | |
| #define BLOCKSIZE 5000 /* Maximum block size */ | |
| #define HASHSIZE 4096 /* Size of hash table */ | |
| #define MAXCHARS 200 /* Char set per block */ | |
| #define THRESHOLD 3 /* Minimum pair count */ |