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  中新网5月27日电 据韩国《亚洲经济》报道,韩国股市综合股价指数(简称“KOSPI指数”)连续多日刷新最高纪录,近1个月增幅居全球之首,尤其是外国人强劲买入助推了KOSPI指数不断上涨。据韩国交易所和金融投资行业26日消息,5月外国人在KOSPI市场的日平均交易额将近2万亿韩元(约123亿人民币),创下了实施相关统计以来的最高值。

  具体来看,截至本月25日,5月外国人的日平均交易额为1.9927万亿韩元,刷新了自2005年4月以来的最高纪录。与此同时,5月外国人的交易额占KOSPI交易总额的32.4%。2014年11月起外国人交易额占比一直徘徊在20%左右,去年10月份开始逐渐增至30%。

  除此之外,LG电子和现代汽车在外国投资者净抛售股排行榜上分列第一、第二。紧随其后的是KB金融、现代摩比斯、三星SDI、熊津豪威、SK电讯、韩亚金融控股、LG Innotek、浦项等。





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Kafka鑷甫鐨勬ц兘娴嬭瘯鑴氭湰 |

Kafka鑷甫鐨勬ц兘娴嬭瘯鑴氭湰

鍗佷簩 23, 2016 |

鍘嬫祴鍐欏叆娑堟伅

./kafka-producer-perf-test.sh --topic test_perf --num-records 1000000 --record-size 1000 --throughput 20000 --producer-props bootstrap.servers=localhost:9092
88126 records sent, 17625.2 records/sec (16.81 MB/sec), 968.5 ms avg latency, 1409.0 max latency.
113096 records sent, 22587.6 records/sec (21.54 MB/sec), 249.2 ms avg latency, 681.0 max latency.
63205 records sent, 12615.8 records/sec (12.03 MB/sec), 1200.1 ms avg latency, 2560.0 max latency.
137255 records sent, 27451.0 records/sec (26.18 MB/sec), 381.6 ms avg latency, 902.0 max latency.
100020 records sent, 20000.0 records/sec (19.07 MB/sec), 4.2 ms avg latency, 142.0 max latency.
100020 records sent, 20004.0 records/sec (19.08 MB/sec), 1.1 ms avg latency, 18.0 max latency.
29195 records sent, 5839.0 records/sec (5.57 MB/sec), 1365.7 ms avg latency, 3544.0 max latency.
22680 records sent, 4528.8 records/sec (4.32 MB/sec), 5279.9 ms avg latency, 6772.0 max latency.
81390 records sent, 16100.9 records/sec (15.36 MB/sec), 3051.3 ms avg latency, 7415.0 max latency.
139410 records sent, 27693.7 records/sec (26.41 MB/sec), 1115.1 ms avg latency, 1637.0 max latency.
118290 records sent, 23610.8 records/sec (22.52 MB/sec), 1226.4 ms avg latency, 1804.0 max latency.
1000000 records sent, 17737.415304 records/sec (16.92 MB/sec), 962.23 ms avg latency, 7415.00 ms max latency, 831 ms 50th, 3932 ms 95th, 6894 ms 99th, 7285 ms 99.9th.

kafka-producer-perf-test.sh 鑴氭湰鍛戒护鐨勫弬鏁颁负锛
--topic topic鍚嶇О锛屾湰渚嬩负test_perf
--num-records 鎬诲叡闇瑕佸彂閫佺殑娑堟伅鏁帮紝鏈緥涓1000000
--record-size 姣忎釜璁板綍鐨勫瓧鑺傛暟锛屾湰渚嬩负1000
--throughput 姣忕閽熷彂閫佺殑璁板綍鏁帮紝鏈緥涓20000
--producer-props bootstrap.servers=localhost:9092 鍙戦佺鐨勯厤缃俊鎭紝鏈緥鍙寚瀹氫簡kafka鐨勯摼鎺ヤ俊鎭
鍙互鐪嬪埌鏈緥涓紝姣忕骞冲潎鍚慿afka鍐欏叆浜16.92 MB鐨勬暟鎹紝澶ф鏄17737鏉℃秷鎭紝姣忔鍐欏叆鐨勫钩鍧囧欢杩熶负962.23姣锛屾渶澶х殑寤惰繜涓7415.00姣锛831 ms鍐呭崰50%

鍘嬫祴娑堣垂娑堟伅

[root@kafka bin]# ./kafka-consumer-perf-test.sh --zookeeper localhost:2181 --topic test_perf --fetch-size 1048576 --messages 1000000 --threads 1
start.time, end.time, data.consumed.in.MB, MB.sec, data.consumed.in.nMsg, nMsg.sec
2016-12-24 09:18:26:409, 2016-12-24 09:18:36:231, 553.8979, 56.3936, 580804, 59132.9668

kafka-consumer-perf-test.sh 鑴氭湰鍛戒护鐨勫弬鏁颁负锛
--zookeeper 鎸囧畾zookeeper鐨勯摼鎺ヤ俊鎭紝鏈緥涓簂ocalhost:2181 锛屽鏋滀娇鐢ㄦ柊鐨勭函java瀹㈡埛绔垯浣跨敤鍙﹀鐨勯厤缃
--topic 鎸囧畾topic鐨勫悕绉帮紝鏈緥涓簍est_perf
--fetch-size 鎸囧畾姣忔fetch鐨勬暟鎹殑澶у皬锛屾湰渚嬩负1048576锛屼篃灏辨槸1M
--messages 鎬诲叡瑕佹秷璐圭殑娑堟伅涓暟锛屾湰渚嬩负1000000锛100w
鍙互鐪嬪埌鏈緥涓紝鎬诲叡娑堣垂浜553.8979M鐨勬暟鎹紝姣忕涓56.3936锛 鎬诲叡娑堣垂浜580804鏉℃秷鎭紝姣忕涓59132.9668

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