Readme suggestion: also show memory usage advantage

[bmahler]

Currently the readme shows the startup time advantage of this golang client.

The jvm based hdfs client also uses a lot of memory, I would assume this go client has a significant advantage there as well, so would be great to show the difference in memory consumption.

[colinmarc]

Hi @bmahler, thanks for the suggestion! Do you have an idea how to measure that in a way that’s pithy to present?

[bmahler]

Looks like /usr/bin/time -l on macOS or /usr/bin/time -v on Linux will show the max resident set size

$ /usr/bin/time -lh echo hi                                                                                               [16:03:10]
hi
	0.03s real		0.00s user		0.00s sys
             1081344  maximum resident set size
                   0  average shared memory size
                   0  average unshared data size
                   0  average unshared stack size
                 175  page reclaims
                   1  page faults
                   0  swaps
                   0  block input operations
                   0  block output operations
                   0  messages sent
                   0  messages received
                   0  signals received
                   0  voluntary context switches
                  58  involuntary context switches
             9768055  instructions retired
            16652271  cycles elapsed
              934592  peak memory footprint