OVHcloud Metal Instances - sysbench RAM
Go back to listsysbench RAM is micro-benchmark part of the sysbench command line. Its goal is to stress volatile memory in write or read access and report performance as MB/sec
Our goal is not to reach the maximum bandwidth, so our configuration uses the default 1KB block, a number of thread equal to the CPU and read then write access. Below, you'll find an example of configuration
sysbench --threads=$cpu_number --time=60 memory --memory-oper=$access run
{
"configuration": {
"chart": {
"type": "bar",
"polar": false,
"zoomType": "",
"options3d": {},
"height": 700,
"width": null,
"margin": null,
"inverted": false,
"zooming": {}
},
"credits": {
"enabled": false
},
"title": {
"text": ""
},
"colorAxis": null,
"subtitle": {
"text": ""
},
"xAxis": {
"title": {
"text": [
""
],
"useHTML": false,
"style": {
"color": "#666666"
}
},
"categories": [
"provider__short_name",
"flavor__name"
],
"lineWidth": 1,
"tickInterval": null,
"tickWidth": 0,
"tickLength": 10,
"tickPixelInterval": null,
"plotLines": null,
"labels": {
"enabled": false,
"format": null,
"formatter": "",
"style": {
"color": "#666666",
"cursor": "default",
"fontSize": "11px"
},
"useHTML": false,
"step": 0
},
"plotBands": null,
"visible": true,
"floor": null,
"ceiling": null,
"type": "linear",
"min": null,
"gridLineWidth": null,
"gridLineColor": null,
"minorTickInterval": null,
"minorTickWidth": 0,
"minTickInterval": null,
"startOnTick": true,
"endOnTick": null,
"tickmarkPlacement": null,
"units": null,
"minRange": null
},
"yAxis": [
{
"title": {
"text": [
"RAM bandwidth in KB/sec<br>Higher is better"
],
"useHTML": false,
"style": {
"color": "#666666"
}
},
"categories": [
"readwrite"
],
"plotLines": null,
"plotBands": null,
"lineWidth": null,
"tickInterval": 5000,
"tickLength": 10,
"floor": null,
"ceiling": null,
"gridLineInterpolation": null,
"gridLineWidth": 1,
"gridLineColor": "#CCC",
"min": null,
"max": 78810.46,
"minorTickInterval": null,
"minorTickWidth": 0,
"minTickInterval": null,
"startOnTick": true,
"endOnTick": null,
"minRange": null,
"type": "linear",
"tickmarkPlacement": null,
"labels": {
"enabled": true,
"formatter": ":abs",
"style": {
"fontSize": "14px"
},
"useHTML": false
}
},
{
"title": {
"enabled": false
},
"categories": [
"readwrite"
],
"plotLines": null,
"plotBands": null,
"lineWidth": null,
"tickInterval": 5000,
"tickLength": 10,
"floor": null,
"ceiling": null,
"gridLineInterpolation": null,
"gridLineWidth": 1,
"gridLineColor": "#CCC",
"min": null,
"max": 78810.46,
"minorTickInterval": null,
"minorTickWidth": 0,
"minTickInterval": null,
"startOnTick": true,
"endOnTick": null,
"minRange": null,
"type": "linear",
"tickmarkPlacement": null,
"labels": {
"enabled": false
},
"inkedTo": 0
}
],
"zAxis": {
"title": {
"text": "RAM bandwidth in KB/sec<br>Higher is better"
}
},
"plotOptions": {
"series": {
"dataLabels": {
"enabled": true,
"format": "{series.name}",
"distance": 30,
"align": "left",
"inside": null,
"allowOverlap": false,
"style": {
"fontSize": "14px"
}
},
"showInLegend": null,
"turboThreshold": 1000,
"stacking": "normal",
"groupPadding": 0,
"centerInCategory": false,
"findNearestPointBy": "x"
}
},
"navigator": {
"enabled": false
},
"scrollbar": {
"enabled": false
},
"rangeSelector": {
"enabled": false,
"inputEnabled": false
},
"legend": {
"enabled": true,
"maxHeight": null,
"align": "center",
"verticalAlign": "bottom",
"layout": "horizontal",
"width": null,
"margin": 12,
"reversed": false
},
"series": [
{
"name": "AWS m6i.metal",
"verbose": "AWS m6i.metal Read",
"data": [
{
"x": 0,
"y": 76614.5505,
"verbose": 76614.5505
}
],
"color": "rgba(247, 152, 29, 0.8)",
"zIndex": 10
},
{
"name": "AWS m6i.metal",
"verbose": "AWS m6i.metal Write",
"data": [
{
"x": 0,
"y": 9534.169,
"verbose": 9534.169
}
],
"pointPlacement": 0.1,
"color": "#9e9fa3",
"linkedTo": ":previous",
"yAxis": 1,
"dataLabels": {
"enabled": false,
"style": {
"textAlign": "left"
}
}
},
{
"name": "OVH B2-120",
"verbose": "OVH B2-120 Read",
"data": [
{
"x": 1,
"y": 11999.763384615384,
"verbose": 11999.763384615384
}
],
"color": "rgba(72, 72, 72, 0.8)",
"zIndex": 10
},
{
"name": "OVH B2-120",
"verbose": "OVH B2-120 Write",
"data": [
{
"x": 1,
"y": 4683.34276923077,
"verbose": 4683.34276923077
}
],
"pointPlacement": 0.1,
"color": "#9e9fa3",
"linkedTo": ":previous",
"yAxis": 1,
"dataLabels": {
"enabled": false,
"style": {
"textAlign": "left"
}
}
},
{
"name": "OVH BM-L1",
"verbose": "OVH BM-L1 Read",
"data": [
{
"x": 2,
"y": 13295.015153846154,
"verbose": 13295.015153846154
}
],
"color": "rgba(72, 72, 72, 0.8)",
"zIndex": 10
},
{
"name": "OVH BM-L1",
"verbose": "OVH BM-L1 Write",
"data": [
{
"x": 2,
"y": 3281.3051538461536,
"verbose": 3281.3051538461536
}
],
"pointPlacement": 0.1,
"color": "#9e9fa3",
"linkedTo": ":previous",
"yAxis": 1,
"dataLabels": {
"enabled": false,
"style": {
"textAlign": "left"
}
}
},
{
"name": "OVH BM-M1",
"verbose": "OVH BM-M1 Read",
"data": [
{
"x": 3,
"y": 3730.8728260869566,
"verbose": 3730.8728260869566
}
],
"color": "rgba(72, 72, 72, 0.8)",
"zIndex": 10
},
{
"name": "OVH BM-M1",
"verbose": "OVH BM-M1 Write",
"data": [
{
"x": 3,
"y": 3553.4025652173914,
"verbose": 3553.4025652173914
}
],
"pointPlacement": 0.1,
"color": "#9e9fa3",
"linkedTo": ":previous",
"yAxis": 1,
"dataLabels": {
"enabled": false,
"style": {
"textAlign": "left"
}
}
},
{
"name": "OVH BM-S1",
"verbose": "OVH BM-S1 Read",
"data": [
{
"x": 4,
"y": 1517.751111111111,
"verbose": 1517.751111111111
}
],
"color": "rgba(72, 72, 72, 0.8)",
"zIndex": 10
},
{
"name": "OVH BM-S1",
"verbose": "OVH BM-S1 Write",
"data": [
{
"x": 4,
"y": 1466.9536296296296,
"verbose": 1466.9536296296296
}
],
"pointPlacement": 0.1,
"color": "#9e9fa3",
"linkedTo": ":previous",
"yAxis": 1,
"dataLabels": {
"enabled": false,
"style": {
"textAlign": "left"
}
}
}
],
"drilldown": {},
"tooltip": {
"enabled": true,
"useHTML": false,
"format": null,
"headerFormat": "",
"pointFormat": "<span style=\"color:{series.color}\">{series.name}</span>: <b>{point.y:.2f}</b><br/>",
"footerFormat": "",
"shared": false,
"outside": false,
"valueDecimals": null,
"split": false
},
"annotations": null
},
"hc_type": "chart",
"id": "179990115825330069140421439529510536854"
}
Cloud Mercato's assertions
Similar to other tests AWS proposes the best performance but from memory-intensive workload a single machine with a high number of RAM deliver the best performance:
- With read operation, m6i.metal is 5.8x faster
- With write operations, 2x faster