Appearance of plus (+) in top output

Question

This is the output of my top command.

Tasks: 633 total,   1 running, 380 sleeping,   0 stopped,   0 zombie
%Cpu(s):  9.9 us,  1.1 sy,  0.0 ni, 65.1 id, 23.9 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem : 26407128+total,  1078396 free, 31198216 used, 23179465+buff/cache
KiB Swap: 26419200+total, 26342462+free,   767368 used. 23102633+avail Mem

What are the plus signs in memory representations - does it mean the system cannot estimate the whole available memory or the number is too long to write here? How do I show the whole memory?

To be able to answer as specifically as possible, could you please add what Unix (and variant/version/release) this is running under? — Kusalananda, Oct 25 '18 at 15:16

score 5 · Accepted Answer · answered Oct 25 '18 at 15:30

The + means the number was too long to fit here. You can see different representations of the number with the E command.

From the top(1) manpage:

E : Extend-Memory-Scale in Summary Area

With this command you can cycle through the available summary area memory scaling which ranges from KiB (kibibytes or 1,024 bytes) through EiB (exbibytes or 1,152,921,504,606,846,976 bytes).

If you see a '+' between a displayed number and the following label, it means that top was forced to truncate some portion of that number. By raising the scaling factor, such truncation can be avoided.

Appearance of plus (+) in top output

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