On Thu, Dec 24, 2009 at 1:28 PM, bheemesh v <bheem...@gmail.com> wrote:
> On Thu, Dec 24, 2009 at 2:53 PM, Bart Van Assche <bart.vanass...@gmail.com > > wrote: > >> On Fri, Dec 11, 2009 at 11:20 AM, bheemesh v <bheem...@gmail.com> wrote: >> > Attaching call graph of the profiled snmpd daemon. >> > Find the graph in attachment. >> >> (replying to an e-mail of two weeks ago) >> >> The call graph is interesting. What you did not yet tell us, and what >> is important in order to interpret the call graph correctly, is how >> many rows are present on your setup in ipAddressTable. >> >> As you can see in the source code of netsnmp_binary_array_insert(), >> this function adds a new entry at the end of the array and sets the >> dirty flag. Setting the dirty flag will make the next call of >> netsnmp_binary_array_get() (which is called by >> netsnmp_binary_array_insert() to check for duplicate entries) sort the >> array. It will probably help to modify netsnmp_binary_array_insert() >> such that if the dirty flag is not set upon entry, it does not set the >> dirty flag upon exit but instead inserts the new entry at the right >> position in the array such that it remains sorted. >> > > Thanks very much for your inputs. > > In fact we have 500+ IP's configured on this machine. > Meanwhile as a optimization i tried was to avoid the > netsnmp_binary_array_get() call from "netsnmp_binary_array_insert()", so > that sort will be called only when the last entry in the container is being > checked. > > Because this only checks for duplicate entries. > Let me know whether this change makes it better? > You are welcome to submit a patch that fixes this issue on the Net-SNMP patch tracker. Bart.
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