On 13-04-18 02:11 AM, Amit Margalit wrote: > Hi, > > Thank for the quick response. Here is the missing data: > > UST > 2.6.32.12-205 (I had to make a tiny patch to make it compile) > MemTotal: 24628852 kB > lttng-ust-2.1.2 > lttng-tools-2.1.1 > lttng-modules-2.1.1 > babeltrace-1.1.0 > userspace-rcu-0.7.6 > > Which patch for 4MB?
Hi, Not sure if it's specifically this one that Matthew was talking about, but we have such a patch in the PPA packages. See: http://bazaar.launchpad.net/~lttng/lttng-tools/packaging-daily/view/head:/patches/0002-Increase-default-subbuffer-size-to-4MB.patch > > Thanks, > > Amit Margalit > IBM XIV - Storage Reinvented > XIV-NAS Development Team > Tel. 03-689-7774 > Fax. 03-689-7230 > > > > From: Matthew Khouzam <[email protected]> > To: <[email protected]> > Date: 04/15/2013 05:24 PM > Subject: Re: [lttng-dev] Limitations on subbuf_size / num_subbuf? > > > > Not at all a n00b question, but could you give some more info? what is > your version of LTTng tools, are you using UST or kernel tracing? How much > ram is on your system? Kernel version? > > I actually have the patched lttng that has standard subbuffer sizes of 4 > mb, so I have not personnaly seen that problem. But the first thing I > would do is upgrade to the latest stable. > > On 13-04-14 06:49 AM, Amit Margalit wrote: > Hello, > > Sorry for the noob question. I seem to be unable to define the total of > subbuf_size * num_subbuf higher than 4MB. I am getting ~30% discarded > tracepoint data. > > Any assistance would be greatly appreciated. > > Amit Margalit > IBM XIV - Storage Reinvented > XIV-NAS Development Team > Tel. 03-689-7774 > Fax. 03-689-7230 _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
