web端发一个新微博我的手机端是获取不能及时 悬赏：0

web端发一个新微博  我的手机端是获取 PagingDataSet<MicroblogEntity> 对象 使用分区缓存 不能及时拿到数据   求大虾的解答

            return GetPagingEntities(pageSize, pageIndex, CachingExpirationType.ObjectCollection, () =>
            {
                StringBuilder cacheKey = new StringBuilder(RealTimeCacheHelper.GetListCacheKeyPrefix(CacheVersionType.AreaVersion, "UserId", userId));
                cacheKey.Append("OwnerActivities::");
                cacheKey.AppendFormat("UserId-{0}:", userId);
                cacheKey.AppendFormat("pageIndex-{0}", pageIndex);
                if (pageSize > 0)
                    cacheKey.AppendFormat("pageSize-{0}", pageSize);
                if (!string.IsNullOrEmpty(sortBy.ToString()))
                    cacheKey.AppendFormat("sortBy-{0}", sortBy);
                return cacheKey.ToString();
            }, () =>
                {
                    Sql sql = Sql.Builder;
                    sql.From("spb_Microblogs")
                        .Where("UserId in(" + id + ")")
                        .Where("AuditStatus=40");
                    sql.OrderBy(sortBy + " desc");
                    return sql;
                });

如果我压力测试 同时发微博 同时获取微博 那缓存不就是没效果了