From: Daniel Borkmann <daniel@iogearbox•net>
To: Edward Cree <ecree@solarflare•com>,
Alexei Starovoitov <ast@fb•com>,
Alexei Starovoitov <alexei.starovoitov@gmail•com>
Cc: davem@davemloft•net, netdev@vger•kernel.org,
linux-kernel@vger•kernel.org,
iovisor-dev <iovisor-dev@lists•iovisor.org>
Subject: Re: [PATCH v3 net-next 00/12] bpf: rewrite value tracking in verifier
Date: Fri, 07 Jul 2017 15:05:07 +0200 [thread overview]
Message-ID: <595F8703.60301@iogearbox.net> (raw)
In-Reply-To: <cf2cba1a-78d4-e893-1126-95c3c6a3d94f@solarflare.com>
On 07/07/2017 02:50 PM, Edward Cree wrote:
> On 07/07/17 10:14, Daniel Borkmann wrote:
>> But this means the bpf_lxc_* cases increase quite significantly,
>> arguably one of them is pretty close already, but the other one not
>> so much, meaning while 142k would shoot over the 128k target quite a
>> bit, the 95k is quite close to the point that it wouldn't take much,
>> say, few different optimizations from compiler, to hit the limit as
>> well eventually, something like 156k for the time being would seem a
>> more adequate raise perhaps that needs to be evaluated carefully
>> given the situation.
> Note that the numbers in my table are the _sum_ of all the progs in the
> object file, not the #insns for a single program. (Hence the awk
> invocation in my pipeline.) For instance in bpf_lxc_opt_-DUNKNOWN.o
> on net-next there were (iirc) a couple of 30k progs and then some
> smaller ones, not a single 93k prog.
Okay, sorry, seems I misread in that case.
next prev parent reply other threads:[~2017-07-07 13:05 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-27 12:53 [PATCH v3 net-next 00/12] bpf: rewrite value tracking in verifier Edward Cree via iovisor-dev
[not found] ` <adc11342-737f-4e06-bce3-f0a92b5594a5-s/n/eUQHGBpZroRs9YW3xA@public.gmane.org>
2017-06-27 12:56 ` [PATCH v3 net-next 01/12] selftests/bpf: add test for mixed signed and unsigned bounds checks Edward Cree via iovisor-dev
[not found] ` <12c14f90-153c-c2c2-b2e2-834185b7ec3f-s/n/eUQHGBpZroRs9YW3xA@public.gmane.org>
2017-06-28 13:51 ` Daniel Borkmann via iovisor-dev
2017-06-27 12:56 ` [PATCH v3 net-next 02/12] bpf/verifier: rework value tracking Edward Cree via iovisor-dev
2017-06-28 15:15 ` Daniel Borkmann
[not found] ` <5953C7FE.1050205-FeC+5ew28dpmcu3hnIyYJQ@public.gmane.org>
2017-06-28 16:07 ` Edward Cree via iovisor-dev
[not found] ` <71aae126-352d-d916-d64a-9d4045d0abe9-s/n/eUQHGBpZroRs9YW3xA@public.gmane.org>
2017-06-28 19:44 ` Daniel Borkmann via iovisor-dev
2017-06-29 7:48 ` kbuild test robot
[not found] ` <2244b48b-f415-3239-6912-cb09f0abc546-s/n/eUQHGBpZroRs9YW3xA@public.gmane.org>
2017-06-28 17:09 ` Daniel Borkmann via iovisor-dev
[not found] ` <5953E2E5.7040106-FeC+5ew28dpmcu3hnIyYJQ@public.gmane.org>
2017-06-28 18:28 ` Edward Cree via iovisor-dev
2017-07-06 20:26 ` Nadav Amit via iovisor-dev
2017-07-06 21:21 ` Nadav Amit via iovisor-dev
[not found] ` <E65DE75F-FC5F-41BC-9F7B-C03D324D8C6F-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-07-07 13:48 ` Edward Cree via iovisor-dev
[not found] ` <abd3c014-f33a-6e86-aead-be38697a2cec-s/n/eUQHGBpZroRs9YW3xA@public.gmane.org>
2017-07-07 17:45 ` Nadav Amit via iovisor-dev
[not found] ` <3A96914E-3009-4E19-B138-7A636A76D9C8-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-07-08 0:54 ` Nadav Amit via iovisor-dev
2017-07-12 19:13 ` Edward Cree via iovisor-dev
[not found] ` <68a2487e-f706-1b61-5c4c-20ffe6d51127-s/n/eUQHGBpZroRs9YW3xA@public.gmane.org>
2017-07-12 22:07 ` Nadav Amit via iovisor-dev
[not found] ` <12DCE590-7F67-4639-A825-61A24AC44ED3-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-07-17 17:02 ` Edward Cree via iovisor-dev
2017-06-27 12:57 ` [PATCH v3 net-next 03/12] nfp: change bpf verifier hooks to match new verifier data structures Edward Cree via iovisor-dev
[not found] ` <b8418d35-7d3f-1ee3-2bfa-cdf87e5b7c95-s/n/eUQHGBpZroRs9YW3xA@public.gmane.org>
2017-06-28 20:47 ` Daniel Borkmann via iovisor-dev
2017-06-29 3:47 ` Jakub Kicinski via iovisor-dev
2017-06-27 12:57 ` [PATCH v3 net-next 04/12] bpf/verifier: track signed and unsigned min/max values Edward Cree via iovisor-dev
2017-06-27 12:58 ` [PATCH v3 net-next 05/12] bpf/verifier: more concise register state logs for constant var_off Edward Cree via iovisor-dev
2017-06-27 12:58 ` [PATCH v3 net-next 06/12] selftests/bpf: change test_verifier expectations Edward Cree via iovisor-dev
2017-06-27 12:59 ` [PATCH v3 net-next 07/12] selftests/bpf: rewrite test_align Edward Cree via iovisor-dev
2017-06-27 12:59 ` [PATCH v3 net-next 08/12] selftests/bpf: add a test to test_align Edward Cree via iovisor-dev
2017-06-27 12:59 ` [PATCH v3 net-next 09/12] selftests/bpf: add test for bogus operations on pointers Edward Cree via iovisor-dev
2017-06-27 12:59 ` [PATCH v3 net-next 10/12] selftests/bpf: don't try to access past MAX_PACKET_OFF in test_verifier Edward Cree via iovisor-dev
2017-06-27 13:00 ` [PATCH v3 net-next 11/12] selftests/bpf: add tests for subtraction & negative numbers Edward Cree via iovisor-dev
2017-06-27 13:00 ` [PATCH v3 net-next 12/12] selftests/bpf: variable offset negative tests Edward Cree via iovisor-dev
2017-06-28 13:50 ` [PATCH v3 net-next 00/12] bpf: rewrite value tracking in verifier Daniel Borkmann
[not found] ` <5953B436.6030506-FeC+5ew28dpmcu3hnIyYJQ@public.gmane.org>
2017-06-28 14:11 ` Edward Cree via iovisor-dev
[not found] ` <788035e1-1974-b48e-3008-d294194a8b05-s/n/eUQHGBpZroRs9YW3xA@public.gmane.org>
2017-06-28 20:38 ` Daniel Borkmann via iovisor-dev
[not found] ` <595413AA.40502-FeC+5ew28dpmcu3hnIyYJQ@public.gmane.org>
2017-06-28 21:37 ` Alexei Starovoitov via iovisor-dev
2017-06-30 16:44 ` Edward Cree via iovisor-dev
[not found] ` <91267d15-652a-16d9-4ee9-42958bd842aa-s/n/eUQHGBpZroRs9YW3xA@public.gmane.org>
2017-06-30 17:34 ` [TEST PATCH] bpf/verifier: roll back ptr&const handling, and fix signed bounds Edward Cree via iovisor-dev
2017-06-30 18:15 ` [PATCH v3 net-next 00/12] bpf: rewrite value tracking in verifier Alexei Starovoitov via iovisor-dev
[not found] ` <ff1ef3ef-71ef-4c23-ede4-b8caeac561ee-b10kYP2dOMg@public.gmane.org>
2017-07-04 19:22 ` Edward Cree via iovisor-dev
[not found] ` <5fa61129-fa82-1607-3363-dfad86aecf1e-s/n/eUQHGBpZroRs9YW3xA@public.gmane.org>
2017-07-04 22:28 ` Daniel Borkmann via iovisor-dev
2017-07-06 18:27 ` Edward Cree
[not found] ` <54b95191-697d-6b15-ec39-438c85e08adc-s/n/eUQHGBpZroRs9YW3xA@public.gmane.org>
2017-07-07 9:14 ` Daniel Borkmann via iovisor-dev
[not found] ` <595F50F3.2030008-FeC+5ew28dpmcu3hnIyYJQ@public.gmane.org>
2017-07-07 12:50 ` Edward Cree via iovisor-dev
2017-07-07 13:05 ` Daniel Borkmann [this message]
2017-07-06 14:07 ` Edward Cree via iovisor-dev
2017-07-14 20:03 ` [iovisor-dev] " Y Song
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