Thanks Brandon. Every image is unique, and is generated by users from the client. So statics limitations make it infeasible.
Right now I think this has to do with the on/off again hits. I went into my Dashboard after a few individual calls, and saw I had gone from 3 resident instances: 3 resident and 3 dynamic. Although this was serving a query rate of 0.018 per second. My average instance latency was 65ms I think. Have no idea what the resident instances are doing. But guess will wait and see. Cheers, stevep On May 14, 12:27 pm, "Brandon Wirtz" <drak...@digerat.com> wrote: > Put it not in a blog. > > Consider using Static (depending what else you are doing) > > With out code it is hard to tell what you are doing but you may be using API > cpu and not "CPU" Cpu > > Most of my CPU bill is API. > > > > -----Original Message----- > From: google-appengine@googlegroups.com > > [mailto:google-appengine@googlegroups.com] On Behalf Of stevep > Sent: Saturday, May 14, 2011 8:04 AM > To: Google App Engine > Subject: [google-appengine] What's going on with my CPU times > > Can anyone help me understand these CPU times. > > I have an on-line handler function that basically does a get_by_id(), and > sends out the bytes for a 150x100 pixel jpeg BLOB record value. A pretty > straightforward image retrieval from the datastore. > > My CPU loads are all over the map. I am $9 paying for 3 instances to stay > resident. An instance takes just less than 15 meg of RAM. Very low volumes > right now, so maybe that affects this? > > Looking at AppStats, the function itself is consistently taking 200ms or > less for every call. So how am I getting 13,000ms for this simple function? > > I've copied/pasted a series of calls for this image below. Here is an > extract of the last 4 url calls: > 242ms...80cpu > 351ms...13,740cpu > 466ms....4,903cpu > 182ms....2,922cpu > > Looking at the full list below, I only occasionally get fast cpu times. This > is the simplest function, can't imagine where the inefficiencies are. Is the > HR datastore that slow at pushing a small payload of bytes out the door? Man > oh man, averaging these cpu times for a 150x100 pixel jpg, I better switch > my image saves/retrieves to > S3 mucho soon. > > Thanks in advance, > stevep > > 2011-05-14 07:20:10.949 /cardimage/59005_t.jpg 200 242ms 80cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-14 07:03:04.967 /cardimage/59005_t.jpg 200 351ms 13740cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-13 14:50:48.065 /cardimage/59005_t.jpg 200 466ms 4903cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-13 13:57:09.990 /cardimage/59005_t.jpg 200 182ms 2922cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-13 10:39:27.922 /cardimage/59005_t.jpg 200 196ms 1474cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-13 09:01:08.347 /cardimage/59005_t.jpg 200 494ms 777cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-13 08:13:33.672 /cardimage/59005_t.jpg 200 501ms 435cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-13 07:23:52.577 /cardimage/59005_t.jpg 200 371ms 117cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-13 07:06:09.403 /cardimage/59005_t.jpg 200 880ms 1585cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-13 05:39:36.415 /cardimage/59005_t.jpg 200 728ms 6460cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-13 03:17:36.456 /cardimage/59005_t.jpg 200 413ms 1252cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-13 00:55:52.879 /cardimage/59005_t.jpg 200 683ms 191cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-12 22:42:57.523 /cardimage/59005_t.jpg 200 342ms 796cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-12 22:06:37.960 /cardimage/59005_t.jpg 200 77ms 66cpu_ms 8api_cpu_ms > 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-12 22:03:02.608 /cardimage/59005_t.jpg 200 301ms 99cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-12 22:00:49.586 /cardimage/59005_t.jpg 200 393ms 118cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-12 21:54:47.092 /cardimage/59005_t.jpg 200 220ms 45cpu_ms > 8api_cpu_ms 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > 2011-05-12 21:54:45.633 /cardimage/59005_t.jpg 200 90ms 46cpu_ms 8api_cpu_ms > 35kb facebookplatform/1.0 (+http:// > developers.facebook.com),gzip(gfe),gzip(gfe),gzip(gfe) > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine" group. > To post to this group, send email to google-appengine@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine+unsubscr...@googlegroups.com. > For more options, visit this group > athttp://groups.google.com/group/google-appengine?hl=en. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. 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