On Fri 15-09-17 18:12:15, Ben Hutchings wrote:
> On Thu, 2017-09-14 at 10:59 +0200, Michal Hocko wrote:
> > On Wed 13-09-17 18:58:13, Jorgen S. Hansen wrote:
> > [...]
> > > The patch series look good to me.
> >
> > Thanks for double checking. Ben, could you merge this to 3.16 stable
> > branch, p
dst gc related code has been removed in commit
5b7c9a8ff828, so those comments are no longer
useful.
Signed-off-by: Duan Jiong
---
net/core/dst.c | 17 -
1 file changed, 17 deletions(-)
diff --git a/net/core/dst.c b/net/core/dst.c
index a6c47da..a710d39 100644
--- a/net/core/dst
Hi Eric,
>> +if (unlikely(skb_shinfo(skb)->gso_size + hlen >
>> MAX_PACKET_SIZE)) {
>> +BNX2X_ERR("reported gso segment size plus headers "
>> + "(%d + %d) > MAX_PACKET_SIZE; dropping pkt!",
>> + skb_shinfo(
Hi Jason,
[auto build test WARNING on vhost/linux-next]
[also build test WARNING on v4.14-rc1 next-20170915]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Jason-Wang/vhost_net-conditionally-ena
On 2017/9/14 13:06, Sekhar Nori wrote:
On Thursday 14 September 2017 03:28 AM, Franklin S Cooper Jr wrote:
On 08/18/2017 02:39 PM, Franklin S Cooper Jr wrote:
During test transmitting using CAN-FD at high bitrates (4 Mbps) only
resulted in errors. Scoping the signals I noticed that only a si
On 2017年09月16日 03:19, Matthew Rosato wrote:
It looks like vhost is slowed down for some reason which leads to more
idle time on 4.13+VHOST_RX_BATCH=1. Appreciated if you can collect the
perf.diff on host, one for rx and one for tx.
perf data below for the associated vhost threads, baseline=4.
On Sun, 2017-09-17 at 16:27 +, Jon Maloy wrote:
> > -Original Message-
> > From: Thomas Meyer [mailto:tho...@m3y3r.de]
[]
> > What about the other binary search implementation in the same file? Should
> > I try to convert it it will it get NAKed for performance reasons too?
>
> The sea
On 09/17/2017 10:23 AM, Roman Yeryomin wrote:
> Changes from v1:
> - use GRO instead of increasing ring size
> - use NAPI_POLL_WEIGHT instead of defining own NAPI_WEIGHT
> - optimize rx descriptor flags processing
net-next is closed at the moment, but these look like reasonable
changes, I would
On 09/17/2017 10:25 AM, Roman Yeryomin wrote:
> Signed-off-by: Roman Yeryomin
You can probably drop the version because it does not really make much
sense for an in-kernel driver anyway.
--
Florian
Hi.
Just to note that it looks like disabling RACK and re-enabling FACK prevents
warning from happening:
net.ipv4.tcp_fack = 1
net.ipv4.tcp_recovery = 0
Hope I get semantics of these tunables right.
On pátek 15. září 2017 21:04:36 CEST Oleksandr Natalenko wrote:
> Hello.
>
> With net.ipv4.tcp
Acked-By: Thomas Sailer
Am 17.09.2017 um 13:46 schrieb Sudip Mukherjee:
Modify baycom driver to use the new parallel port device model.
Signed-off-by: Sudip Mukherjee
---
Not tested on real hardware, only tested on qemu and verified that the
device is binding to the driver properly in epp_op
Signed-off-by: Roman Yeryomin
---
drivers/net/ethernet/korina.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index d58aa4bfcb58..7cecd9dbc111 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ether
Performance gain when receiving locally is 55->95Mbps and 50->65Mbps for NAT.
Signed-off-by: Roman Yeryomin
---
drivers/net/ethernet/korina.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index c210add9b654..5f36
Signed-off-by: Roman Yeryomin
---
drivers/net/ethernet/korina.c | 58 +++
1 file changed, 31 insertions(+), 27 deletions(-)
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index 5f36e1703378..c26f0d84ba6b 100644
--- a/drivers/net
Signed-off-by: Roman Yeryomin
---
drivers/net/ethernet/korina.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index c26f0d84ba6b..d58aa4bfcb58 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -4
Signed-off-by: Roman Yeryomin
---
drivers/net/ethernet/korina.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index e5466e19994a..c210add9b654 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/
Signed-off-by: Roman Yeryomin
---
drivers/net/ethernet/korina.c | 87 ++-
1 file changed, 44 insertions(+), 43 deletions(-)
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index 98d686ed69a9..e5466e19994a 100644
--- a/drivers/net
When such interrupts occur there is not much we can do.
Dropping the whole ring doesn't help and only produces high packet loss.
If we just ignore the interrupt the mac will drop one or few packets instead of
the whole ring.
Also this will lower the irq handling load and increase performance.
Sig
Changes from v1:
- use GRO instead of increasing ring size
- use NAPI_POLL_WEIGHT instead of defining own NAPI_WEIGHT
- optimize rx descriptor flags processing
Roman Yeryomin (7):
net: korina: don't use overflow and underflow interrupts
net: korina: optimize rx descriptor flags processing
ne
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Dear Talented,
I am Talent Scout For BLUE SKY FILM STUDIO, Present Blue sky Studio a
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> -Original Message-
> From: Thomas Meyer [mailto:tho...@m3y3r.de]
> Sent: Sunday, September 17, 2017 11:00
> To: Jon Maloy
> Cc: Joe Perches ; Ying Xue ;
> netdev@vger.kernel.org; tipc-discuss...@lists.sourceforge.net; linux-
> ker...@vger.kernel.org; da...@davemloft.net
> Subject: Re:
On 15/09/2017 10:28 AM, Jesper Dangaard Brouer wrote:
On Thu, 14 Sep 2017 19:49:31 +0300
Tariq Toukan wrote:
Hi all,
As part of the efforts to support increasing next-generation NIC speeds,
I am investigating SW bottlenecks in network stack receive flow.
Here I share some numbers I got for
On 14/09/2017 11:19 PM, Andi Kleen wrote:
Tariq Toukan writes:
Congestion in this case is very clear.
When monitored in perf top:
85.58% [kernel] [k] queued_spin_lock_slowpath
Please look at the callers. Spinlock profiles without callers
are usually useless because it's just blaming the me
> Am 16.09.2017 um 15:20 schrieb Jon Maloy .
>>
>> What part of "very time critical" have you verified and benchmarked as
>> inconsequential?
>>
>> Please post your results.
>
> I agree with Joe here. This change does not simplify anything, it does not
> reduce the amount of code, plus that it
On 09/15/2017 01:51 PM, Josef Bacik wrote:
> Finally got access to a box to run this down myself. This patch on top of
> the other patches fixes the problem for me, could you verify it works for
> you? Thanks,
>
Yup I can confirm that patch fixes things when applied on top of the
previous 3 p
From: Robert Hoo
1. given a device, get its NUMA belongings
2. given a device, get its queues' irq numbers.
3. given a NUMA node, get its cpu id list.
Signed-off-by: Robert Hoo
---
pktgen/functions.sh | 44
1 file changed, 44 insertions(+)
diff --g
From: Robert Hoo
This script simply does:
Detect $DEV's NUMA node belonging.
Bind each thread (processor of NUMA locality) with each $DEV queue's
irq affinity, 1:1 mapping.
How many '-t' threads input determines how many queues will be
utilized.
If '-f' designates first cpu id, then offset in the
From: Robert Hoo
It's hard to benchmark 40G+ network bandwidth using ordinary
tools like iperf, netperf (see reference 1).
Pktgen, packet generator from Kernel sapce, shall be a candidate.
I derived this NUMA awared irq affinity sample script from
multi-queue sample02, successfully benchmarked 4
Modify baycom driver to use the new parallel port device model.
Signed-off-by: Sudip Mukherjee
---
Not tested on real hardware, only tested on qemu and verified that the
device is binding to the driver properly in epp_open but then unbinding
as the device was not found.
drivers/net/hamradio/ba
On 09/16/2017 03:02 PM, Davide Caratti wrote:
> this script, edited from Linux Advanced Routing and Traffic Control guide
>
> tc q a dev en0 root handle 1: htb default a
> tc c a dev en0 parent 1: classid 1:1 htb rate 6mbit burst 15k
> tc c a dev en0 parent 1:1 classid 1:a htb rate 5mbit ceil 6mbi
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