我正在webjob中进行列表排序。当我使用c#list时，它工作得很好。但为了提高性能，我将数据以列表的形式保存到redis缓存中。
我的最终目标是只拿出最近5分钟的数据。
工作c代码-

public class MyObject
    {
        public uint InstrumentID { get; set; }
        public decimal Close { get; set; }
        public decimal High { get; set; }
        public decimal Low { get; set; }
        public decimal Open { get; set; }
        public DateTime TimeStamp { get; set; }
        public uint Volume { get; set; }

        public DateTime Created { get; } = DateTime.Now;
        public DateTime Ttl { get; } = DateTime.Now.AddMinutes(5);
        public DateTime? Persisted { get; set; }

        public bool IsDead => DateTime.Now > Ttl;
        public bool IsPersisted => Persisted.HasValue;
        public bool TimeToPersist => IsPersisted == false && DateTime.Now > Created.AddMinutes(5);

        public DateTime GetStartOfPeriodByMins(int numMinutes)
        {
            int oldMinutes = TimeStamp.Minute;
            int newMinutes = (oldMinutes / numMinutes) * numMinutes;

            DateTime startOfPeriod = new DateTime(TimeStamp.Year, TimeStamp.Month, TimeStamp.Day, TimeStamp.Hour, newMinutes, 0);

            return startOfPeriod;
        }
    }

var inputList = new SortedSet<MyObject>(new MyObjectComparer());

            inputList.Add(new MyObject() { TimeStamp = DateTime.Now, Open = 9, High = 12, Low = 8, Close = 11, InstrumentID = 2526 });
            Thread.Sleep(10000);
            inputList.Add(new MyObject() { TimeStamp = DateTime.Now, Open = 9, High = 12, Low = 8, Close = 11, InstrumentID = 2526 });
            Thread.Sleep(10000);
            inputList.Add(new MyObject() { TimeStamp = DateTime.Now, Open = 9, High = 12, Low = 8, Close = 11, InstrumentID = 2526 });
            Thread.Sleep(50000);
            inputList.Add(new MyObject() { TimeStamp = DateTime.Now, Open = 9, High = 12, Low = 8, Close = 11, InstrumentID = 2526 });

            var resultSet = inputList
                .GroupBy(i => i.GetStartOfPeriodByMins(5))
                .Select(gr =>
               new
               {
                   StartOfPeriod = gr.Key,
                   Min = gr.Min(item => item.Open),
                   Max = gr.Max(item => item.Open),
                   Open = gr.OrderBy(item => item.TimeStamp).First().Open,
                   Close = gr.OrderBy(item => item.TimeStamp).Last().Open
               });

现在，我不断地将相同的记录插入redis缓存。当我试图获取最后5分钟的数据时，我想用同样的方法 GetStartOfPeriodByMins 但是它需要一个myobject类的列表，redis返回redisvalue[]。
redis代码-使用stackexchange.redis包

var cache = RedisConnectorHelper.Connection.GetDatabase();

            //int i = 0;
            for (int i = 0; i < 10000; i++)
            {
                var tickDataHis = new MyObject()
                {
                    InstrumentID = 2526,
                    Close = 14 + i,
                    High = 16 + i,
                    Low = 11 + i,
                    Open = 12 + i,
                    TimeStamp = DateTime.Now,
                    Volume = 11111
                };

                // insert into redis
                cache.ListRightPush("tickData", JsonConvert.SerializeObject(tickDataHis));

                Thread.Sleep(3000);
            }

            var inputList = cache.ListRange("tickData");

或者有没有其他方法可以从redis缓存中获取最新的5分钟数据？