Linux stats not updating best dating intro lines

Linux kernel developer Ingo Molnár called atime "perhaps the most stupid Unix design idea of all times," adding: "[T]hink about this a bit: 'For every file that is read from the disk, lets do a ... And, for every file that is already cached and which we read from the cache ... '" He further emphasized the performance impact thus: Atime updates are by far the biggest IO performance deficiency that Linux has today.Getting rid of atime updates would give us more everyday Linux performance than all the pagecache speedups of the past 10 years, man mount ....

linux stats not updating-47

Linux stats not updating

relatime Update inode access times relative to modify or change time.

Access time is only updated if the previous access time was ear‐ lier than the current modify or change time.

For the last week or so, stats on my Chrome Extension have stopped being reported.

I recently released an update which corresponds with those dates but there was no code change that should have caused the stats change.

it usually happens on the same dates to most developers. if you link your extension with google analytics, you can then see installs from analytics but its not the same, as the chrome stats also substract uninstalls (not tracked in analytics).

To link the store with analytics, go to "Edit" in the chrome developer dashboard, scroll down to the "analytics" section and enter an analytics ID.

However, turning off atime updating breaks POSIX compliance, and some applications, notably the mutt mail reader (in some configurations), and some file usage watching utilities, notably tmpwatch.

In the worst case, not updating atime can cause some backup programs to fail to back up a file.

(Similar to noat‐ ime, but doesn't break mutt or other applications that need to know if a file has been read since the last time it was modi‐ fied.) Since Linux 2.6.30, the kernel defaults to the behavior provided by this option (unless noatime was specified), and the stricta‐ time option is required to obtain traditional semantics.

In addition, since Linux 2.6.30, the file's last access time is always updated if it is more than 1 day old.

One more option: The disk might be full due to a process that is continuously creating data: logs, cores and the like.

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