| Message ID | 20200916194249.505389-1-kuba@kernel.org |
|---|---|
| State | Accepted |
| Delegated to: | David Ahern |
| Headers | show |
| Series | [iproute2-next] ip: promote missed packets to the -s row | expand |
On 9/16/20 1:42 PM, Jakub Kicinski wrote: > missed_packet_errors are much more commonly reported: > > linux$ git grep -c '[.>]rx_missed_errors ' -- drivers/ | wc -l > 64 > linux$ git grep -c '[.>]rx_over_errors ' -- drivers/ | wc -l > 37 > > Plus those drivers are generally more modern than those > using rx_over_errors. > > Since recently merged kernel documentation makes this > preference official, let's make ip -s output more informative > and let rx_missed_errors take the place of rx_over_errors. > > Before: > > 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000 > link/ether 00:0a:f7:c1:4d:38 brd ff:ff:ff:ff:ff:ff > RX: bytes packets errors dropped overrun mcast > 6.04T 4.67G 0 0 0 67.7M > RX errors: length crc frame fifo missed > 0 0 0 0 7 > TX: bytes packets errors dropped carrier collsns > 3.13T 2.76G 0 0 0 0 > TX errors: aborted fifo window heartbeat transns > 0 0 0 0 6 > > After: > > 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000 > link/ether 00:0a:f7:c1:4d:38 brd ff:ff:ff:ff:ff:ff > RX: bytes packets errors dropped missed mcast > 6.04T 4.67G 0 0 7 67.7M > RX errors: length crc frame fifo overrun > 0 0 0 0 0 > TX: bytes packets errors dropped carrier collsns > 3.13T 2.76G 0 0 0 0 > TX errors: aborted fifo window heartbeat transns > 0 0 0 0 6 changes to ip output are usually not allowed.
On Fri, 18 Sep 2020 09:44:35 -0600 David Ahern wrote: > On 9/16/20 1:42 PM, Jakub Kicinski wrote: > > 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000 > > link/ether 00:0a:f7:c1:4d:38 brd ff:ff:ff:ff:ff:ff > > RX: bytes packets errors dropped overrun mcast > > 6.04T 4.67G 0 0 0 67.7M > > RX errors: length crc frame fifo missed > > 0 0 0 0 7 > > TX: bytes packets errors dropped carrier collsns > > 3.13T 2.76G 0 0 0 0 > > TX errors: aborted fifo window heartbeat transns > > 0 0 0 0 6 > > > > After: > > > > 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000 > > link/ether 00:0a:f7:c1:4d:38 brd ff:ff:ff:ff:ff:ff > > RX: bytes packets errors dropped missed mcast > > 6.04T 4.67G 0 0 7 67.7M > > RX errors: length crc frame fifo overrun > > 0 0 0 0 0 > > TX: bytes packets errors dropped carrier collsns > > 3.13T 2.76G 0 0 0 0 > > TX errors: aborted fifo window heartbeat transns > > 0 0 0 0 6 > > changes to ip output are usually not allowed. Does that mean "no" or "you need to be more convincing"? :) JSON output is not changed. I don't think we care about screen scrapers. If we cared about people how interpret values based on their position in the output we would break that with every release, no?
On 9/18/20 9:48 AM, Jakub Kicinski wrote: > On Fri, 18 Sep 2020 09:44:35 -0600 David Ahern wrote: >> On 9/16/20 1:42 PM, Jakub Kicinski wrote: >>> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000 >>> link/ether 00:0a:f7:c1:4d:38 brd ff:ff:ff:ff:ff:ff >>> RX: bytes packets errors dropped overrun mcast >>> 6.04T 4.67G 0 0 0 67.7M >>> RX errors: length crc frame fifo missed >>> 0 0 0 0 7 >>> TX: bytes packets errors dropped carrier collsns >>> 3.13T 2.76G 0 0 0 0 >>> TX errors: aborted fifo window heartbeat transns >>> 0 0 0 0 6 >>> >>> After: >>> >>> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000 >>> link/ether 00:0a:f7:c1:4d:38 brd ff:ff:ff:ff:ff:ff >>> RX: bytes packets errors dropped missed mcast >>> 6.04T 4.67G 0 0 7 67.7M >>> RX errors: length crc frame fifo overrun >>> 0 0 0 0 0 >>> TX: bytes packets errors dropped carrier collsns >>> 3.13T 2.76G 0 0 0 0 >>> TX errors: aborted fifo window heartbeat transns >>> 0 0 0 0 6 >> >> changes to ip output are usually not allowed. > > Does that mean "no" or "you need to be more convincing"? :) > > JSON output is not changed. I don't think we care about screen > scrapers. If we cared about people how interpret values based > on their position in the output we would break that with every > release, no? > In this case you are not adding or inserting a new column, you are changing the meaning of an existing column. It's an 'error' stat so probably not as sensitive. I do not have a strong religion on it since it seems to be making the error stat more up to date.
On Fri, 18 Sep 2020 22:52:56 -0600 David Ahern <dsahern@gmail.com> wrote: > On 9/18/20 9:48 AM, Jakub Kicinski wrote: > > On Fri, 18 Sep 2020 09:44:35 -0600 David Ahern wrote: > >> On 9/16/20 1:42 PM, Jakub Kicinski wrote: > >>> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000 > >>> link/ether 00:0a:f7:c1:4d:38 brd ff:ff:ff:ff:ff:ff > >>> RX: bytes packets errors dropped overrun mcast > >>> 6.04T 4.67G 0 0 0 67.7M > >>> RX errors: length crc frame fifo missed > >>> 0 0 0 0 7 > >>> TX: bytes packets errors dropped carrier collsns > >>> 3.13T 2.76G 0 0 0 0 > >>> TX errors: aborted fifo window heartbeat transns > >>> 0 0 0 0 6 > >>> > >>> After: > >>> > >>> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000 > >>> link/ether 00:0a:f7:c1:4d:38 brd ff:ff:ff:ff:ff:ff > >>> RX: bytes packets errors dropped missed mcast > >>> 6.04T 4.67G 0 0 7 67.7M > >>> RX errors: length crc frame fifo overrun > >>> 0 0 0 0 0 > >>> TX: bytes packets errors dropped carrier collsns > >>> 3.13T 2.76G 0 0 0 0 > >>> TX errors: aborted fifo window heartbeat transns > >>> 0 0 0 0 6 > >> > >> changes to ip output are usually not allowed. > > > > Does that mean "no" or "you need to be more convincing"? :) > > > > JSON output is not changed. I don't think we care about screen > > scrapers. If we cared about people how interpret values based > > on their position in the output we would break that with every > > release, no? > > > > In this case you are not adding or inserting a new column, you are > changing the meaning of an existing column. > > It's an 'error' stat so probably not as sensitive. I do not have a > strong religion on it since it seems to be making the error stat more up > to date. Is there any way to see the old error column at all?
On Sat, 19 Sep 2020 09:06:58 -0700 Stephen Hemminger wrote: > > > Does that mean "no" or "you need to be more convincing"? :) > > > > > > JSON output is not changed. I don't think we care about screen > > > scrapers. If we cared about people how interpret values based > > > on their position in the output we would break that with every > > > release, no? > > > > In this case you are not adding or inserting a new column, you are > > changing the meaning of an existing column. > > > > It's an 'error' stat so probably not as sensitive. I do not have a > > strong religion on it since it seems to be making the error stat more up > > to date. I hope this change would encourage vendors to use the standard stats. Because.. > Is there any way to see the old error column at all? I had no idea how to even show error stats. I read the code multiple times, only when I sat down to actually implement displaying did I realize that -s -s (repeat the option) shows all the stats.
On 9/16/20 1:42 PM, Jakub Kicinski wrote: > missed_packet_errors are much more commonly reported: > > linux$ git grep -c '[.>]rx_missed_errors ' -- drivers/ | wc -l > 64 > linux$ git grep -c '[.>]rx_over_errors ' -- drivers/ | wc -l > 37 > > Plus those drivers are generally more modern than those > using rx_over_errors. > > Since recently merged kernel documentation makes this > preference official, let's make ip -s output more informative > and let rx_missed_errors take the place of rx_over_errors. > > Before: > > 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000 > link/ether 00:0a:f7:c1:4d:38 brd ff:ff:ff:ff:ff:ff > RX: bytes packets errors dropped overrun mcast > 6.04T 4.67G 0 0 0 67.7M > RX errors: length crc frame fifo missed > 0 0 0 0 7 > TX: bytes packets errors dropped carrier collsns > 3.13T 2.76G 0 0 0 0 > TX errors: aborted fifo window heartbeat transns > 0 0 0 0 6 > > After: > > 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000 > link/ether 00:0a:f7:c1:4d:38 brd ff:ff:ff:ff:ff:ff > RX: bytes packets errors dropped missed mcast > 6.04T 4.67G 0 0 7 67.7M > RX errors: length crc frame fifo overrun > 0 0 0 0 0 > TX: bytes packets errors dropped carrier collsns > 3.13T 2.76G 0 0 0 0 > TX errors: aborted fifo window heartbeat transns > 0 0 0 0 6 > > Signed-off-by: Jakub Kicinski <kuba@kernel.org> > --- > ip/ipaddress.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > applied to iproute2-next
diff --git a/ip/ipaddress.c b/ip/ipaddress.c index ccf67d1dd55c..0822a8d2d792 100644 --- a/ip/ipaddress.c +++ b/ip/ipaddress.c @@ -744,7 +744,7 @@ static void __print_link_stats(FILE *fp, struct rtattr *tb[]) close_json_object(); } else { /* RX stats */ - fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s", + fprintf(fp, " RX: bytes packets errors dropped missed mcast %s%s", s->rx_compressed ? "compressed" : "", _SL_); fprintf(fp, " "); @@ -752,7 +752,7 @@ static void __print_link_stats(FILE *fp, struct rtattr *tb[]) print_num(fp, 8, s->rx_packets); print_num(fp, 7, s->rx_errors); print_num(fp, 7, s->rx_dropped); - print_num(fp, 7, s->rx_over_errors); + print_num(fp, 7, s->rx_missed_errors); print_num(fp, 7, s->multicast); if (s->rx_compressed) print_num(fp, 7, s->rx_compressed); @@ -760,14 +760,14 @@ static void __print_link_stats(FILE *fp, struct rtattr *tb[]) /* RX error stats */ if (show_stats > 1) { fprintf(fp, "%s", _SL_); - fprintf(fp, " RX errors: length crc frame fifo missed%s%s", + fprintf(fp, " RX errors: length crc frame fifo overrun%s%s", s->rx_nohandler ? " nohandler" : "", _SL_); fprintf(fp, " "); print_num(fp, 8, s->rx_length_errors); print_num(fp, 7, s->rx_crc_errors); print_num(fp, 7, s->rx_frame_errors); print_num(fp, 7, s->rx_fifo_errors); - print_num(fp, 7, s->rx_missed_errors); + print_num(fp, 7, s->rx_over_errors); if (s->rx_nohandler) print_num(fp, 7, s->rx_nohandler); }
missed_packet_errors are much more commonly reported: linux$ git grep -c '[.>]rx_missed_errors ' -- drivers/ | wc -l 64 linux$ git grep -c '[.>]rx_over_errors ' -- drivers/ | wc -l 37 Plus those drivers are generally more modern than those using rx_over_errors. Since recently merged kernel documentation makes this preference official, let's make ip -s output more informative and let rx_missed_errors take the place of rx_over_errors. Before: 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000 link/ether 00:0a:f7:c1:4d:38 brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped overrun mcast 6.04T 4.67G 0 0 0 67.7M RX errors: length crc frame fifo missed 0 0 0 0 7 TX: bytes packets errors dropped carrier collsns 3.13T 2.76G 0 0 0 0 TX errors: aborted fifo window heartbeat transns 0 0 0 0 6 After: 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000 link/ether 00:0a:f7:c1:4d:38 brd ff:ff:ff:ff:ff:ff RX: bytes packets errors dropped missed mcast 6.04T 4.67G 0 0 7 67.7M RX errors: length crc frame fifo overrun 0 0 0 0 0 TX: bytes packets errors dropped carrier collsns 3.13T 2.76G 0 0 0 0 TX errors: aborted fifo window heartbeat transns 0 0 0 0 6 Signed-off-by: Jakub Kicinski <kuba@kernel.org> --- ip/ipaddress.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)