anchor.diff:          "viz": "heatmap",
           "requests": [
             {
  -            "q": "(avg:bosh.healthmonitor.system.mem.kb{$job_z1,$deployment} by {index,job}) * 1024 , (avg:bosh.healthmonitor.system.mem.kb{$job_z2,$deployment} by {index,job}) * 1024"
  +            "q": "(avg:bosh.healthmonitor.system.mem.kb{$job_z1,$deployment,$index}by{index,job})*1024,(avg:bosh.healthmonitor.system.mem.kb{$job_z2,$deployment,$index}by{index,job})*1024"
             }
           ]
         },
  
positive.code:       "default": "deployment:<%= deployment %>",
        "prefix": "deployment",
        "name": "deployment"
      }
    ],
    "id": 61963,
  
negative.code:         "viz": "heatmap",
          "requests": [
            {
              "q": "avg:bosh.healthmonitor.system.mem.percent{$job_z1,$deployment,$index} by {index,job}, avg:bosh.healthmonitor.system.mem.percent{$job_z2,$deployment,$index} by {index,job}"
            }
          ]
        },
  