Re: Strangely long poll() times

2003-09-24 Thread gregames
Jim Whitehead wrote: All, Teng Xu, a graduate student working with me, has been developing a WebDAV performance testing client. Some of the results he received were a bit puzzling -- small PROPFIND operations were taking far longer (appx. 40-45ms) than we had expected. So, we started looking into

Re: Strangely long poll() times

2003-08-25 Thread Teng Xu
On Sat, 23 Aug 2003, William A. Rowe, Jr. wrote: > At 06:59 PM 8/22/2003, Jim Whitehead wrote: > > >>From what we can tell, the call sequence looks like this: > > > >method_propfind --> ap_xml_parse_input --> ap_get_brigade --> > >core_input_filter --> apr_bucket_read --> socket_bucket_read -->

Re: Strangely long poll() times

2003-08-23 Thread Teng Xu
We made experiments on two different machines. Here are some experiment setups, hope they will be helpful: #MachineOne - Dell OptiPlex GX240 - O/S: Red Hat Linux 2.4.20 - CPU: P4 1.7GHZ - MEM: 512M - NIC: Integrated 3Com Fast EtherLink 10/100 - Hard Drives: WDC 40GB #MachineTwo - Dell Dimension 4

Re: Strangely long poll() times

2003-08-23 Thread William A. Rowe, Jr.
At 06:59 PM 8/22/2003, Jim Whitehead wrote: >>From what we can tell, the call sequence looks like this: > >method_propfind --> ap_xml_parse_input --> ap_get_brigade --> >core_input_filter --> apr_bucket_read --> socket_bucket_read --> >apr_socket_recv --> apr_wait_for_io_or_timeout --> apr_poll --

Re: Strangely long poll() times

2003-08-22 Thread Aaron Bannert
Can you tell us more about the operating systems and the hardware (drivers, network cards, etc)? -aaron On Friday, August 22, 2003, at 04:59 PM, Jim Whitehead wrote: Teng Xu, a graduate student working with me, has been developing a WebDAV performance testing client. Some of the results he rec

Strangely long poll() times

2003-08-22 Thread Jim Whitehead
All, Teng Xu, a graduate student working with me, has been developing a WebDAV performance testing client. Some of the results he received were a bit puzzling -- small PROPFIND operations were taking far longer (appx. 40-45ms) than we had expected. So, we started looking into the components of thi