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XenServer/XCP-ng: fix vm memory usage is always 99.9x% (#6852) 

According to https://docs.citrix.com/en-us/citrix-hypervisor/monitor-performance.html
The metrics "memory_internal_free" is already in KiB, no need to convert.

"Memory used as reported by the guest agent (KiB). Enabled by default"
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Wei Zhou 2022-11-02 09:36:16 +01:00 committed by GitHub
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commit 296035d9a5
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plugins/hypervisors/xenserver/src/main/java/com/cloud/hypervisor/xenserver/resource/CitrixResourceBase.java
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@ -3526,7 +3526,7 @@ public abstract class CitrixResourceBase extends ServerResourceBase implements S
} else if (param.matches("vbd_.*_write")) {
vmStatsAnswer.setDiskWriteKBs(vmStatsAnswer.getDiskWriteKBs() + getDataAverage(dataNode, col, numRows) / BASE_TO_CONVERT_BYTES_INTO_KILOBYTES);
} else if (param.contains("memory_internal_free")) {
vmStatsAnswer.setIntFreeMemoryKBs(vmStatsAnswer.getIntFreeMemoryKBs() + getDataAverage(dataNode, col, numRows) / BASE_TO_CONVERT_BYTES_INTO_KILOBYTES);
vmStatsAnswer.setIntFreeMemoryKBs(vmStatsAnswer.getIntFreeMemoryKBs() + getDataAverage(dataNode, col, numRows));
} else if (param.contains("memory_target")) {
vmStatsAnswer.setTargetMemoryKBs(vmStatsAnswer.getTargetMemoryKBs() + getDataAverage(dataNode, col, numRows) / BASE_TO_CONVERT_BYTES_INTO_KILOBYTES);
} else if (param.contains("memory")) {