Re: linux-next: Tree for June 5

Ingo Molnar
2008-06-06T16:38:18Z

* Ingo Molnar <mingo@elte.hu> wrote:

> * Andrew Morton <akpm@linux-foundation.org> wrote:
>
> > > what do you mean? We are testing commits that everybody will run and
> > > are pre-filtering them for sanity and stability before they hit
> > > linux-next.
> >
> > One doesn't test commits - one tests a tree. And the -tip tree is
> > 2.6.26-rc5 plus a bunch of x86 changes. [...]
>
> no, 90%+ of all bugs are not due to tree interaction effects but are
> caused by individual commits, triggerable on a particular
> system/workload. (Our historic regression list is the proof for that,
> can give you itemized statistics if you want.)
>
> also, the -tip tree is not "2.6.26-rc5 plus a bunch of x86 changes" but
> v2.6.26-rc5-84-g39b945a plus 75 topic trees we maintain:
>
> build, core/futex-64bit, core/kill-the-BKL, core/locking, core/percpu,
> core/printk, core/rcu, core/rodata, core/softirq, core/softlockup,
> core/stacktrace, core/urgent, cpus4096, genirq, hrtimers, kmemcheck,
> out-of-tree, pci-for-jesse, safe-poison-pointers, sched, sched-devel,
> scratch, stackprotector, timers/clockevents, timers/hpet,
> timers/hrtimers, timers/nohz, timers/posixtimers, tip, tracing/ftrace,
> tracing/ftrace-mergefixups, tracing/immediates, tracing/markers,
> tracing/mmiotrace, tracing/mmiotrace-mergefixups, tracing/nmisafe,
> tracing/sched_markers, tracing/stopmachine-allcpus, tracing/sysprof,
> tracing/textedit, x86/apic, x86/apm, x86/bitops, x86/build, x86/checkme,
> x86/cleanups, x86/cpa, x86/cpu, x86/defconfig, x86/gart, x86/i8259,
> x86/intel, x86/irq, x86/irqstats, x86/kconfig, x86/ldt, x86/mce,
> x86/memtest, x86/mmio, x86/mpparse, x86/nmi, x86/numa, x86/numa-fixes,
> x86/pat, x86/pebs, x86/ptemask, x86/resumetrace, x86/scratch, x86/setup,
> x86/threadinfo, x86/timers, x86/urgent, x86/uv, x86/vdso, x86/xen,
> x86/xsave.
>
> most of which are in linux-next (around 70%), or will be shortly in
> linux-next (more than 90%).

we created some stats and in fact not 70% but 80% of all -tip commits
are in linux-next right now.

Here are the full -tip commit stats (merge commits excluded):

total commits in auto-next-branches: 617
auto-branches commits in linux-next: 553
total commits in tip/auto-latest: 686
total commits in tip/master: 699

that propotion should go up to 90% on the next linux-next iteration.
(barring any problems with the new topics)

Ingo