PCT_USED 这个参数用来控制什么时候该block可以重新insert数据。 比如这个值是: PCT_USED=40,当block里面的数据delete到低于40%的时候,比如是这个block只有39%的空间有数据,那么这个时候就开始可以接受新的数据。 然后这个block执行PCT_FREE标准,到达或超过PCT_FREE标准(意思是该block使用了超过或达到80%)开始delete数...
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虽然freelist link和 unlink是简单的Oracle功能,不过设置freelist link (pctused) 和unlink (pctfree) 对Oracle的性能确实有影响。 由DBA的基本知识知道,pctfree参数是控制freelist un-links的(即将块由freelists中移除)。设置pctfree=10 意味着每个块都保留10%的空间用作行扩展。pctused参数是控制freelist re-links...
Currently the metric used_pct_max for the tablespaces in the Zabbix Agent 2 Oracle plugin returns the allocated and not the used percentage of the tablespace. Please change the sql statement to something like this: old: ROUND(DECODE(SUM(df.MAX_BYTES), 0, 0, (SUM(df.BYTES) / SUM(df.MA...
UDB_Buff_Used_Pct_Crit (Superseded) Issues a critical alert if the percentage of FCM buffers currently used exceeds the critical threshold.
UDB_Ce_Used_Pct_Crit (Superseded) Issues a critical alert if the percentage of FCM connection entries currently used exceeds the critical threshold.
For some reason, the Xiaomi AX3200 router freezes after 5 minutes after the start (when the databases start to be updated)... Ruantiblock, HTTPS DNS Proxy, Adblock were installed - previously all this worked without a hint of bugs, now I...
Vehicles run on East Third Ring Road in the morning in Chaoyang District of Beijing, capital of China, Jan. 3, 2023. (Xinhua/Ju Huanzong) China's used vehicle sales rose 12.61 percent in the first three quarters of this year, data from the China Automobile Dealers Association showed. ...
CarMax revenue rises 11 pct as used car sales increasedoi:urn:uuid:2fdaa2d4272a8410VgnVCM100000d7c1a8c0RCRDCarMax Inc, the largest U.S. used car retailer, reported a 11 percent rise in quarterly revenue as easier availability of credit boosted car sales....
BEIJING, Dec. 21 (Xinhua) -- A total of 65 percent of respondents said they were satisfied with their performance in time use over the past year, according to a recent survey by the China Youth Daily. Among the 2,076 Chinese surveyed, respondents of the post-80s generation showed the gr...