fenzo-core/src/main/java/com/netflix/fenzo/queues/tiered/TierSla.java
double evalAllocationShare(String bucket) {
        if (allocsMap.isEmpty()) {
            return 1.0; // special case if there are no allocations setup
        }
        final ResAllocs resAllocs = allocsMap.get(bucket);
        if (resAllocs == null)
            return totalCpu < (1.0 / eps) ? eps : 1.0 / totalCpu; // arbitrarily base it on cpus
        double val = totalCpu < 1.0 ? eps : resAllocs.getCores() / totalCpu;
        val = Math.max(val, totalMem < 1.0 ? eps : resAllocs.getMemory() / totalMem);
        val = Math.max(val, totalNetwork < 1.0 ? eps : resAllocs.getNetworkMbps() / totalNetwork);
        return Math.max(val, totalDisk < 1.0 ? eps : resAllocs.getDisk() / totalDisk);
    }
double evalAllocationShare(String bucket) {
        if (allocsMap.isEmpty()) {
            return 1.0; // special case if there are no allocations setup
        }
        final ResAllocs resAllocs = allocsMap.get(bucket);
        if (resAllocs == null)
            return totalCpu < (1.0 / eps) ? eps : 1.0 / totalCpu; // arbitrarily base it on cpus
        double val = totalCpu < 1.0 ? eps : resAllocs.getCores() / totalCpu;
        val = Math.max(val, totalMem < 1.0 ? eps : resAllocs.getMemory() / totalMem);
        val = Math.max(val, totalNetwork < 1.0 ? eps : resAllocs.getNetworkMbps() / totalNetwork);
        return Math.max(val, totalDisk < 1.0 ? eps : resAllocs.getDisk() / totalDisk);
    }
Evaluate the allocation share of a bucket among all the buckets for which allocations are defined. If there are
no allocations setup, return 1.0, implying 100%. If no allocation is setup for the given <code>bucket</code>,
return a small value. Otherwise, calculate the share percentage of each resource cpu, memory, network, and disk
from the total and return the maximum of these shares.

@param bucket Name of the bucket.
@return Allocation share for the bucket.