append(buf, "total", () -> processProbe.getProcessCpuTotalTime());
        buf.append("},");
        buf.append("\"virtual_memory\":{");
        append(buf, "total", () -> processProbe.getTotalVirtualMemorySize());
        buf.append('}');
        buf.append("},");
    }

    private void appendOsStats(final StringBuilder buf) {
        buf.append("\"os\":{");

        final ProcessVirtualMemoryObj processVirtualMemoryObj = new ProcessVirtualMemoryObj();
        processObj.virtualMemory = processVirtualMemoryObj;
        processVirtualMemoryObj.total = processProbe.getTotalVirtualMemorySize();
        return processObj;
    }

    private OsObj getOsObj() {
        final OsObj osObj = new OsObj();
        final OsProbe osProbe = OsProbe.getInstance();