[Server-devel] jffs2 vs ubifs vs ext4 space-efficiency question

Any ideas why Release 13.2.6 placed on ext4 instead of jffs2 appears to almost double in size? Starting with 13.2.6 on XO-1 on jffs2 per usual, "du -s /* | sort -nr" yields these contents for a stock/vanilla XO-1: 1070992 /usr 239060 /home 117623 /var 18780 /etc 15382 /boot

Re: [Server-devel] [support-gang] jffs2 vs ubifs vs ext4 space-efficiency question

Yes, jffs2 compresses data. That's why it is so slow. That's why SD card is faster than it should be otherwise. No, there's no commonly used compression for ext4. It would be a performance tradeoff; compression takes time and power. On Tue, Dec 22, 2015 at 04:24:48PM -0500, Adam Holt wrote: >

Re: [Server-devel] [support-gang] jffs2 vs ubifs vs ext4 space-efficiency question

On Tue, Dec 22, 2015 at 4:28 PM, James Cameron wrote: > Yes, jffs2 compresses data. That's why it is so slow. That's why SD > card is faster than it should be otherwise. +1 on James reply. Also a quick note: AIUI, jffs2 gets much of its storage advantage from better packing