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Recently, Our servers appears abnormal performance.
So, I tested performance with Intel MLC v2.3 after reboot.
First result is very good.
However, I returned strange result after 3~5 times repeat mlc.
I think last result is credible data.
Finally, I replaced memory and performance becomes good.
In question, Why mlc result is good when immediately reboot?
Why the origin result is show later?
Please help me.
Machine : Lenovo x3950 x6 4 computer book / 1 TB memory (each book = 256GB)
------- first test --------
Using buffer size of 200.000MB
Measuring idle latencies (in ns)...
Memory node
Socket 0 1 2 3
0 108.7 187.4 224.6 185.4
1 187.7 108.5 185.7 224.4
2 224.2 185.6 116.6 185.6
3 185.0 224.6 189.8 108.8
Measuring Peak Memory Bandwidths for the system
Bandwidths are in MB/sec (1 MB/sec = 1,000,000 Bytes/sec)
Using traffic with the following read-write ratios
ALL Reads : 202381.1
3:1 Reads-Writes : 174073.8
2:1 Reads-Writes : 167462.2
1:1 Reads-Writes : 158554.0
Stream-triad like: 159076.0
Measuring Memory Bandwidths between nodes within system
Bandwidths are in MB/sec (1 MB/sec = 1,000,000 Bytes/sec)
Using Read-only traffic type
Memory node
Socket 0 1 2 3
0 50558.5 12117.5 12069.9 12712.5
1 12351.6 50751.4 12728.7 12055.4
2 12268.8 12710.1 50661.5 12173.9
3 12732.0 12054.1 12104.0 50675.2
-------------End of first test ----------
---------Fourth result------
Using buffer size of 200.000MB
Measuring idle latencies (in ns)...
Memory node
Socket 0 1 2 3
0 147.3 261.6 272.1 244.0
1 247.7 108.7 204.6 236.9
2 270.2 202.6 108.5 183.8
3 246.0 236.3 208.3 108.7
Measuring Peak Memory Bandwidths for the system
Bandwidths are in MB/sec (1 MB/sec = 1,000,000 Bytes/sec)
Using traffic with the following read-write ratios
ALL Reads : 189662.5
3:1 Reads-Writes : 166338.1
2:1 Reads-Writes : 160815.7
1:1 Reads-Writes : 152592.7
Stream-triad like: 31839.4
Measuring Memory Bandwidths between nodes within system
Bandwidths are in MB/sec (1 MB/sec = 1,000,000 Bytes/sec)
Using Read-only traffic type
Memory node
Socket 0 1 2 3
0 37788.7 7831.2 12066.2 12714.4
1 9098.5 50648.0 12686.3 6726.6
2 9153.9 8003.7 50749.6 12258.4
3 9191.7 7923.7 12079.6 50702.9
- Tags:
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Hello,
This is off-topic for this particular forum. I will see if I can move your question to a more appropriate place.
I see that when you go to the landing page and click on "Forum", it sends you to the Business Client Forum. I am working on getting this resolved.
Gael
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