Test setup:
* Cluster idle except for indexing traffic
* Run query normalization routine from MjoLniR to generate load from 50 hadoop executors
* Routine limited to enwiki_content
* Choose two machines serving replicas of the same shard (elastic1017 and elastic1043) from the two separate groups of servers.


A few (relatively representative) memory usage reports from elastic1043:
```
|---------------------------------------||---------------------------------------|
|--             Socket  0             --||--             Socket  1             --|
|---------------------------------------||---------------------------------------|
|--     Memory Channel Monitoring     --||--     Memory Channel Monitoring     --|
|---------------------------------------||---------------------------------------|
|-- Mem Ch  0: Reads (MB/s):  1243.39 --||-- Mem Ch  0: Reads (MB/s):   249.55 --|
|--            Writes(MB/s):  1061.45 --||--            Writes(MB/s):    17.09 --|
|-- Mem Ch  1: Reads (MB/s):  1241.51 --||-- Mem Ch  1: Reads (MB/s):   241.42 --|
|--            Writes(MB/s):  1061.21 --||--            Writes(MB/s):     9.76 --|
|-- Mem Ch  2: Reads (MB/s):  1242.28 --||-- Mem Ch  2: Reads (MB/s):   241.36 --|
|--            Writes(MB/s):  1061.07 --||--            Writes(MB/s):     9.79 --|
|-- Mem Ch  3: Reads (MB/s):  1253.14 --||-- Mem Ch  3: Reads (MB/s):   241.45 --|
|--            Writes(MB/s):  1070.09 --||--            Writes(MB/s):     9.81 --|
|-- NODE 0 Mem Read (MB/s) :  4980.32 --||-- NODE 1 Mem Read (MB/s) :   973.77 --|
|-- NODE 0 Mem Write(MB/s) :  4253.82 --||-- NODE 1 Mem Write(MB/s) :    46.45 --|
|-- NODE 0 P. Write (T/s):     131039 --||-- NODE 1 P. Write (T/s):     114837 --|
|-- NODE 0 Memory (MB/s):     9234.14 --||-- NODE 1 Memory (MB/s):     1020.23 --|
|---------------------------------------||---------------------------------------|
|---------------------------------------||---------------------------------------|
|--                 System Read Throughput(MB/s):       5954.09                --|
|--                System Write Throughput(MB/s):       4300.27                --|
|--               System Memory Throughput(MB/s):      10254.36                --|
|---------------------------------------||---------------------------------------|
|---------------------------------------||---------------------------------------|
|--             Socket  0             --||--             Socket  1             --|
|---------------------------------------||---------------------------------------|
|--     Memory Channel Monitoring     --||--     Memory Channel Monitoring     --|
|---------------------------------------||---------------------------------------|
|-- Mem Ch  0: Reads (MB/s):  1561.84 --||-- Mem Ch  0: Reads (MB/s):   282.63 --|
|--            Writes(MB/s):  1253.94 --||--            Writes(MB/s):    18.36 --|
|-- Mem Ch  1: Reads (MB/s):  1555.15 --||-- Mem Ch  1: Reads (MB/s):   273.58 --|
|--            Writes(MB/s):  1252.34 --||--            Writes(MB/s):    10.62 --|
|-- Mem Ch  2: Reads (MB/s):  1556.21 --||-- Mem Ch  2: Reads (MB/s):   273.93 --|
|--            Writes(MB/s):  1252.17 --||--            Writes(MB/s):    10.65 --|
|-- Mem Ch  3: Reads (MB/s):  1567.87 --||-- Mem Ch  3: Reads (MB/s):   274.37 --|
|--            Writes(MB/s):  1260.93 --||--            Writes(MB/s):    10.67 --|
|-- NODE 0 Mem Read (MB/s) :  6241.07 --||-- NODE 1 Mem Read (MB/s) :  1104.51 --|
|-- NODE 0 Mem Write(MB/s) :  5019.39 --||-- NODE 1 Mem Write(MB/s) :    50.30 --|
|-- NODE 0 P. Write (T/s):     135793 --||-- NODE 1 P. Write (T/s):     121339 --|
|-- NODE 0 Memory (MB/s):    11260.46 --||-- NODE 1 Memory (MB/s):     1154.81 --|
|---------------------------------------||---------------------------------------|
|---------------------------------------||---------------------------------------|
|--                 System Read Throughput(MB/s):       7345.58                --|
|--                System Write Throughput(MB/s):       5069.69                --|
|--               System Memory Throughput(MB/s):      12415.27                --|
|---------------------------------------||---------------------------------------|
|---------------------------------------||---------------------------------------|
|--             Socket  0             --||--             Socket  1             --|
|---------------------------------------||---------------------------------------|
|--     Memory Channel Monitoring     --||--     Memory Channel Monitoring     --|
|---------------------------------------||---------------------------------------|
|-- Mem Ch  0: Reads (MB/s):  1451.99 --||-- Mem Ch  0: Reads (MB/s):   206.95 --|
|--            Writes(MB/s):  1257.25 --||--            Writes(MB/s):    16.61 --|
|-- Mem Ch  1: Reads (MB/s):  1450.56 --||-- Mem Ch  1: Reads (MB/s):   198.48 --|
|--            Writes(MB/s):  1257.02 --||--            Writes(MB/s):     9.42 --|
|-- Mem Ch  2: Reads (MB/s):  1451.96 --||-- Mem Ch  2: Reads (MB/s):   198.46 --|
|--            Writes(MB/s):  1256.86 --||--            Writes(MB/s):     9.41 --|
|-- Mem Ch  3: Reads (MB/s):  1462.16 --||-- Mem Ch  3: Reads (MB/s):   198.59 --|
|--            Writes(MB/s):  1265.56 --||--            Writes(MB/s):     9.45 --|
|-- NODE 0 Mem Read (MB/s) :  5816.67 --||-- NODE 1 Mem Read (MB/s) :   802.48 --|
|-- NODE 0 Mem Write(MB/s) :  5036.69 --||-- NODE 1 Mem Write(MB/s) :    44.89 --|
|-- NODE 0 P. Write (T/s):     133682 --||-- NODE 1 P. Write (T/s):     111961 --|
|-- NODE 0 Memory (MB/s):    10853.36 --||-- NODE 1 Memory (MB/s):      847.37 --|
|---------------------------------------||---------------------------------------|
```

Same thing for elastic1017:
```
|---------------------------------------||---------------------------------------|
|--             Socket  0             --||--             Socket  1             --|
|---------------------------------------||---------------------------------------|
|--     Memory Channel Monitoring     --||--     Memory Channel Monitoring     --|
|---------------------------------------||---------------------------------------|
|-- Mem Ch  1: Reads (MB/s):  3230.91 --||-- Mem Ch  1: Reads (MB/s):   387.15 --|
|--            Writes(MB/s):  3521.80 --||--            Writes(MB/s):    51.89 --|
|-- Mem Ch  2: Reads (MB/s):   713.36 --||-- Mem Ch  2: Reads (MB/s):   183.63 --|
|--            Writes(MB/s):   726.49 --||--            Writes(MB/s):     4.03 --|
|-- Mem Ch  3: Reads (MB/s):   712.75 --||-- Mem Ch  3: Reads (MB/s):   183.74 --|
|--            Writes(MB/s):   726.22 --||--            Writes(MB/s):     4.08 --|
|-- NODE 0 Mem Read (MB/s) :  4657.02 --||-- NODE 1 Mem Read (MB/s) :   754.51 --|
|-- NODE 0 Mem Write(MB/s) :  4974.51 --||-- NODE 1 Mem Write(MB/s) :    60.00 --|
|-- NODE 0 P. Write (T/s):     282753 --||-- NODE 1 P. Write (T/s):     130817 --|
|-- NODE 0 Memory (MB/s):     9631.53 --||-- NODE 1 Memory (MB/s):      814.51 --|
|---------------------------------------||---------------------------------------|
|---------------------------------------||---------------------------------------|
|--                 System Read Throughput(MB/s):       5411.53                --|
|--                System Write Throughput(MB/s):       5034.51                --|
|--               System Memory Throughput(MB/s):      10446.04                --|
|---------------------------------------||---------------------------------------|
|---------------------------------------||---------------------------------------|
|--             Socket  0             --||--             Socket  1             --|
|---------------------------------------||---------------------------------------|
|--     Memory Channel Monitoring     --||--     Memory Channel Monitoring     --|
|---------------------------------------||---------------------------------------|
|-- Mem Ch  1: Reads (MB/s):  4239.13 --||-- Mem Ch  1: Reads (MB/s):   866.91 --|
|--            Writes(MB/s):  4404.82 --||--            Writes(MB/s):   467.04 --|
|-- Mem Ch  2: Reads (MB/s):   175.46 --||-- Mem Ch  2: Reads (MB/s):   458.88 --|
|--            Writes(MB/s):    12.40 --||--            Writes(MB/s):   250.83 --|
|-- Mem Ch  3: Reads (MB/s):   174.79 --||-- Mem Ch  3: Reads (MB/s):   458.59 --|
|--            Writes(MB/s):    12.09 --||--            Writes(MB/s):   250.71 --|
|-- NODE 0 Mem Read (MB/s) :  4589.39 --||-- NODE 1 Mem Read (MB/s) :  1784.39 --|
|-- NODE 0 Mem Write(MB/s) :  4429.31 --||-- NODE 1 Mem Write(MB/s) :   968.58 --|
|-- NODE 0 P. Write (T/s):     336267 --||-- NODE 1 P. Write (T/s):     145569 --|
|-- NODE 0 Memory (MB/s):     9018.70 --||-- NODE 1 Memory (MB/s):     2752.96 --|
|---------------------------------------||---------------------------------------|
|---------------------------------------||---------------------------------------|
|--                 System Read Throughput(MB/s):       6373.78                --|
|--                System Write Throughput(MB/s):       5397.89                --|
|--               System Memory Throughput(MB/s):      11771.67                --|
|---------------------------------------||---------------------------------------|
|---------------------------------------||---------------------------------------|
|--             Socket  0             --||--             Socket  1             --|
|---------------------------------------||---------------------------------------|
|--     Memory Channel Monitoring     --||--     Memory Channel Monitoring     --|
|---------------------------------------||---------------------------------------|
|-- Mem Ch  1: Reads (MB/s):  1065.14 --||-- Mem Ch  1: Reads (MB/s):  2136.34 --|
|--            Writes(MB/s):   867.09 --||--            Writes(MB/s):  2027.39 --|
|-- Mem Ch  2: Reads (MB/s):   644.22 --||-- Mem Ch  2: Reads (MB/s):   667.31 --|
|--            Writes(MB/s):   621.00 --||--            Writes(MB/s):   529.47 --|
|-- Mem Ch  3: Reads (MB/s):   643.64 --||-- Mem Ch  3: Reads (MB/s):   667.26 --|
|--            Writes(MB/s):   620.69 --||--            Writes(MB/s):   529.44 --|
|-- NODE 0 Mem Read (MB/s) :  2353.00 --||-- NODE 1 Mem Read (MB/s) :  3470.91 --|
|-- NODE 0 Mem Write(MB/s) :  2108.78 --||-- NODE 1 Mem Write(MB/s) :  3086.30 --|
|-- NODE 0 P. Write (T/s):     171676 --||-- NODE 1 P. Write (T/s):     196425 --|
|-- NODE 0 Memory (MB/s):     4461.78 --||-- NODE 1 Memory (MB/s):     6557.21 --|
|---------------------------------------||---------------------------------------|
|---------------------------------------||---------------------------------------|
|--                 System Read Throughput(MB/s):       5823.91                --|
|--                System Write Throughput(MB/s):       5195.08                --|
|--               System Memory Throughput(MB/s):      11018.99                --|
|---------------------------------------||---------------------------------------|
```


Open questions:
* Why is 1017 so heavily hitting Mem Ch 1, when 1043 is spreading out the reads between channels
* Why does socket 1 have such low memory bandwidth compared to socket 0 on both machines?