I noticed the swap file went missing after the latest update to Sierra (10.12.5) though swap seems to be working.

```
vm_stat
Mach Virtual Memory Statistics: (page size of 4096 bytes)
Pages free:                             2152219.
Pages active:                            898204.
Pages inactive:                          276296.
Pages speculative:                       437656.
Pages throttled:                              0.
Pages wired down:                        427700.
Pages purgeable:                         133196.
"Translation faults":                  67396051.
Pages copy-on-write:                    6410771.
Pages zero filled:                     30858807.
Pages reactivated:                           31.
Pages purged:                             42928.
File-backed pages:                       715857.
Anonymous pages:                         896299.
Pages stored in compressor:                   0.
Pages occupied by compressor:                 0.
Decompressions:                               0.
Compressions:                                 0.
Pageins:                                 414848.
Pageouts:                                     0.
Swapins:                                      0.
Swapouts:                                     0.

```

Has anyone else seen this behavior and can confirm it’s intended and/or harmless?