| To: | Marko Myllynen <myllynen@xxxxxxxxxx> |
|---|---|
| Subject: | Re: Oracle connection debugging (was Re: [pcp] Handling Oracle PMDA Latencies) |
| From: | Nathan Scott <nathans@xxxxxxxxxx> |
| Date: | Mon, 23 May 2016 02:26:26 -0400 (EDT) |
| Cc: | pcp developers <pcp@xxxxxxxxxxx> |
| Delivered-to: | pcp@xxxxxxxxxxx |
| In-reply-to: | <594283644.49214956.1463982724891.JavaMail.zimbra@xxxxxxxxxx> |
| References: | <56F25541.9020602@xxxxxxxxxx> <1558022602.42320984.1461208897951.JavaMail.zimbra@xxxxxxxxxx> <57395F04.2090909@xxxxxxxxxx> <1695396289.47966126.1463381940778.JavaMail.zimbra@xxxxxxxxxx> <573D897A.5070804@xxxxxxxxxx> <626822210.48972762.1463726815586.JavaMail.zimbra@xxxxxxxxxx> <573EDF38.1020102@xxxxxxxxxx> <594283644.49214956.1463982724891.JavaMail.zimbra@xxxxxxxxxx> |
| Reply-to: | Nathan Scott <nathans@xxxxxxxxxx> |
| Thread-index: | tvk36vJhQzBM2dco0EHtu5DtPmptWYR8fkSE |
| Thread-topic: | Oracle connection debugging (was Re: [pcp] Handling Oracle PMDA Latencies) |
----- Original Message ----- > ----- Original Message ----- > > On 2016-05-20 09:46, Nathan Scott wrote: > > > ----- Original Message ----- > > >> [...] > > I think this is one of the larger setups tested so far. I mentioned that > > e.g. for oracle.object_cache the select query returned over 220k rows > > here, how many rows it returns on your test setup? > > I no longer have access to the large system from the perf folk here. But, > on my laptop with a default Oracle install, there's ~8K rows there - when > fetching that it takes 0.05 seconds (elapsed time). So yep its definitely > feasible that 220k will take ~1.3 seconds (approx linear). (Oops, I mixed up the times from your earlier mail ... so, not linear) >> - oracle.file takes ~1.3s with ~1k rows >> - oracle.object_cache takes ~3.2s with ~225k rows cheers. -- Nathan |
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