Warmup at ValueEviction wastes resources on create/warmup/eject value

MutationStatus HashTable::insertFromWarmup(const Item& itm,

                                           bool eject,

                                           bool keyMetaDataOnly,

                                           EvictionPolicy evictionPolicy) {

    auto htRes = findInner(itm.getKey());

    auto* v = (itm.isCommitted() ? htRes.committedSV : htRes.pendingSV);

    auto& hbl = htRes.lock;

    if (v == NULL) {

        v = unlocked_addNewStoredValue(hbl, itm);

        v->markClean();

        // TODO: Would be faster if we just skipped creating the value in the

        // first place instead of adding it to the Item and then discarding it

        // in markNotResident.

        if (keyMetaDataOnly) {

            const auto preProps = valueStats.prologue(v);

            v->markNotResident();

            valueStats.epilogue(preProps, v);

        }

    } 

..

}