Home Business XFS File-System With Linux 5.10 Punts Year 2038 Problem To The Year...

XFS File-System With Linux 5.10 Punts Year 2038 Problem To The Year 2486

LINUX STORAGE --

Not only is Btrfs seeing notable improvements with the in-development Linux 5.10 kernel but the XFS file-system also has some prominent changes of its own.

There are two new on-disk meta-data capabilities for XFS with Linux 5.10:

1. The size of inode btrees in the allocation group is now recorded. This is for increasing redundancy checks and also allowing faster mount times.

2. Support for timestamps now until the year 2486. This “big timestamps” feature is the refactoring of their timestamp and inode encoding functions to handle timestamps as a 64-bit nanosecond counter and bit shifting to increase the effective size. This now allows XFS to run well past the Year 2038 problem (where storing the time since 1970 in seconds will no longer fit in a signed 32-bit integer and thus wraparound) to now the Year 2486. Making a new XFS file-system with bigtime enabled allows a timestamp range from December 1901 to July 2486 rather than December 1901 to January 2038. For preserving backwards compatibility, the big timestamps feature is not currently enabled by default.

Besides those on-disk metadata changes, XFS for Linux 5.10 also fixes an issue where in select conditions synchronous writes wouldn’t actually flush to disk and other fixes.

The initial XFS changes for Linux 5.10 can be found via this pull request. A secondary pull request with XFS scalability improvements and other changes is expected in the coming days of the Linux 5.10 merge window.

Source link

Most Popular

Researchers At Large Hadron Collider Are Confident To Make Contact With Parallel Universe In Days

 the astoundingly complex LHC “atom smasher” at the CERN center in Geneva, Switzerland, are fired up to its maximum energy levels ever in an...

Jerry Sloan remembered by fellow coaches Don Nelson, Phil Jackson, Lenny Wilkens

4:34 PM ETJackie MacMullanESPN Senior Writer CloseAward-winning columnist and authorRecipient of Basketball Hall of Fame Curt Gowdy Media AwardJoined ESPNBoston.com in 2010Don Nelson, the winningest coach in NBA history, had just finished a stroll on the beach in his beloved Hawai'i on Friday when a reporter informed him that his coaching contemporary Jerry Sloan had…

Underground nanny economy, racism, exploitation amplified by pandemic

Business Insider talked to 16 nannies and some parents to see how questionable working conditions have changed, in many ways for worse, since March. The nanny industry is an unregulated "gray market" that predominantly employs women of color who aren't citizens. Because there's so little oversight and so few protections, nannies have little recourse in dealing…

The covid-19 pandemic is forcing a rethink in macroeconomics

Editor’s note: Some of our covid-19 coverage is free for readers of The Economist Today, our daily newsletter. For more stories and our pandemic tracker, see our hubIN THE FORM it is known today, macroeconomics began in 1936 with the publication of John Maynard Keynes’s “The General Theory of Employment, Interest and Money”. Its subsequent…