Francis Yan
05b055e891
tcp: instrument tcp sender limits chronographs ...
This patch implements the skeleton of the TCP chronograph
instrumentation on sender side limits:
1) idle (unspec)
2) busy sending data other than 3-4 below
3) rwnd-limited
4) sndbuf-limited
The limits are enumerated 'tcp_chrono'. Since a connection in
theory can idle forever, we do not track the actual length of this
uninteresting idle period. For the rest we track how long the sender
spends in each limit. At any point during the life time of a
connection, the sender must be in one of the four states.
If there are multiple conditions worthy of tracking in a chronograph
then the highest priority enum takes precedence over
the other conditions. So that if something "more interesting"
starts happening, stop the previous chrono and start a new one.
The time unit is jiffy(u32) in order to save space in tcp_sock.
This implies application must sample the stats no longer than every
49 days of 1ms jiffy.
Signed-off-by: Francis Yan <francisyyan@gmail.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-30 10:04:24 -05:00
fbdev changes for 4.9
2016-10-12 11:01:37 -07:00
libceph: initialize last_linger_id with a large integer
2016-11-10 20:13:08 +01:00
firmware /meson
treewide: remove redundant #include <linux/kconfig.h>
2016-10-11 15:06:33 -07:00
irqchip/gic-v3-its: Fix entry size mask for GITS_BASER
2016-10-17 16:26:29 +01:00
net/mlx4: Fix firmware command timeout during interrupt test
2016-10-29 16:23:48 -04:00
net/mlx5: Add DCBX firmware commands support
2016-11-28 15:09:35 -05:00
mtd: nand: Fix data interface configuration logic
2016-10-28 09:58:36 +02:00
netfilter: ipset: Count non-static extension memory for userspace
2016-11-10 13:28:45 +01:00
phy: Add reset callback for not generic phy
2016-11-05 13:45:02 +05:30
media updates for v4.9-rc1
2016-10-11 13:22:22 -07:00
qed: Learn resources from management firmware
2016-10-31 15:52:36 -04:00
sunrpc: svc_age_temp_xprts_now should not call setsockopt non-tcp transports
2016-11-14 10:30:58 -05:00
Merge branch 'device-properties'
2016-11-11 23:23:02 +01:00
autofs4: move linux/auto_dev-ioctl.h to uapi/linux
2016-10-11 15:06:31 -07:00
autofs: move inclusion of linux/limits.h to uapi
2016-10-11 15:06:31 -07:00
mm/vmalloc.c: fix align value calculation error
2016-10-07 18:46:26 -07:00
Merge branch 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2016-10-14 12:18:50 -07:00
Merge branch 'for-4.9/block-smp' of git://git.kernel.dk/linux-block
2016-10-09 17:32:20 -07:00
mm/nobootmem.c: remove duplicate macro ARCH_LOW_ADDRESS_LIMIT statements
2016-10-07 18:46:28 -07:00
cgroup: add support for eBPF programs
2016-11-25 16:25:52 -05:00
bpf: add __must_check attributes to refcount manipulating helpers
2016-11-21 11:25:58 -05:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-11-22 13:27:16 -05:00
net: phy: broadcom: Add support code for downshift/Wirespeed
2016-11-24 15:45:53 -05:00
cgroup: add support for eBPF programs
2016-11-25 16:25:52 -05:00
Merge branch 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2016-10-14 12:18:50 -07:00
clk: core: add __init decoration for CLK_OF_DECLARE_DRIVER function
2016-10-17 15:27:27 -07:00
mm, compaction: restrict full priority to non-costly orders
2016-10-07 18:46:29 -07:00
latent_entropy: Mark functions with __latent_entropy
2016-10-10 14:51:45 -07:00
This adds a new gcc plugin named "latent_entropy". It is designed to
2016-10-15 10:03:15 -07:00
Revert "console: don't prefer first registered if DT specifies stdout-path"
2016-11-11 08:12:37 -08:00
nmi_backtrace: generate one-line reports for idle cpus
2016-10-07 18:46:30 -07:00
cpufreq: fix overflow in cpufreq_table_find_index_dl()
2016-10-20 16:35:50 +02:00
clocksource: Add J-Core timer/clocksource driver
2016-10-20 20:10:17 +02:00
cred: simpler, 1D supplementary groups
2016-10-07 18:46:30 -07:00
include/linux/ctype.h: make isdigit() table lookupless
2016-10-11 15:06:30 -07:00
debugfs: constify argument to debugfs_real_fops()
2016-11-04 14:56:16 -04:00
devres: add devm_alloc_percpu()
2016-11-15 22:34:25 -05:00
dma-mapping: introduce the DMA_ATTR_NO_WARN attribute
2016-10-11 15:06:32 -07:00
genetlink: statically initialize families
2016-10-27 16:16:09 -04:00
Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
2016-10-14 14:26:58 -07:00
net: use core MTU range checking in misc drivers
2016-10-20 14:51:10 -04:00
This adds a new gcc plugin named "latent_entropy". It is designed to
2016-10-15 10:03:15 -07:00
bpf: drop unnecessary context cast from BPF_PROG_RUN
2016-11-27 20:38:47 -05:00
mm, frontswap: make sure allocated frontswap map is assigned
2016-11-11 08:12:37 -08:00
aio: fix freeze protection of aio writes
2016-10-30 13:09:42 -04:00
fanotify: use notification_lock instead of access_lock
2016-10-07 18:46:26 -07:00
latent_entropy: Mark functions with __latent_entropy
2016-10-10 14:51:45 -07:00
genetlink: mark families as __ro_after_init
2016-10-27 16:16:09 -04:00
net: use core MTU range checking in WAN drivers
2016-10-20 14:51:09 -04:00
net: use core MTU range checking in misc drivers
2016-10-20 14:51:10 -04:00
mremap: fix race between mremap() and page cleanning
2016-11-17 09:46:56 -08:00
mm: remove unnecessary condition in remove_inode_hugepages
2016-10-07 18:46:29 -07:00
Revert "hv_netvsc: report vmbus name in ethtool"
2016-10-29 15:03:14 -04:00
cfg80211: Add KEK/nonces for FILS association frames
2016-10-27 16:03:24 +02:00
bpf: reuse dev_is_mac_header_xmit for redirect
2016-11-27 20:38:47 -05:00
Fixing a bug in team driver due to incorrect 'unsigned int' to 'int' conversion
2016-10-07 23:50:39 -04:00
vxlan: avoid vlan processing in vxlan device.
2016-11-15 12:16:13 -05:00
This adds a new gcc plugin named "latent_entropy". It is designed to
2016-10-15 10:03:15 -07:00
x86/io: add interface to reserve io memtype for a resource range. (v1.1)
2016-10-26 15:45:38 +10:00
iomap: add IOMAP_REPORT
2016-10-20 15:51:28 +11:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2016-11-15 10:54:36 -05:00
jiffies: add time comparison functions for 64 bit jiffies
2016-10-07 18:46:26 -07:00
kprobes: Unpoison stack in jprobe_return() for KASAN
2016-10-16 11:02:31 +02:00
kconfig.h: remove config_enabled() macro
2016-10-27 18:43:43 -07:00
printk: reinstate KERN_CONT for printing continuation lines
2016-10-09 12:23:38 -07:00
min/max: remove sparse warnings when they're nested
2016-10-07 18:46:30 -07:00
kdump, vmcoreinfo: report memory sections virtual addresses
2016-10-11 15:06:33 -07:00
mm: kmemleak: avoid using __va() on addresses that don't have a lowmem mapping
2016-10-11 15:06:33 -07:00
kthread: add kerneldoc for kthread_create()
2016-10-11 15:06:33 -07:00
bus: mvebu-bus: Provide inline stub for mvebu_mbus_get_dram_win_info
2016-11-18 13:54:21 -05:00
mm/memblock.c: expose total reserved memory
2016-10-07 18:46:28 -07:00
mm: memcontrol: consolidate cgroup socket tracking
2016-10-07 18:46:29 -07:00
net: mii: add generic function to support ksetting support
2016-11-02 15:17:09 -04:00
mm: unexport __get_user_pages()
2016-10-24 19:13:20 -07:00
kernel, oom: fix potential pgd_lock deadlock from __mmdrop
2016-10-07 18:46:27 -07:00
mm: remove per-zone hashtable of bitlock waitqueues
2016-10-27 09:27:57 -07:00
netdevice: fix sparse warning for HARD_TX_LOCK
2016-11-27 15:28:35 -05:00
netfilter: remove hook_entries field from nf_hook_state
2016-11-03 11:52:58 +01:00
netfilter: remove hook_entries field from nf_hook_state
2016-11-03 11:52:58 +01:00
netpoll: more efficient locking
2016-11-16 18:32:02 -05:00
nmi_backtrace: add more trigger_*_cpu_backtrace() methods
2016-10-07 18:46:30 -07:00
nvme.h: add an enum for cns values
2016-10-19 11:36:22 -06:00
mm, oom: enforce exit_oom_victim on current task
2016-10-07 18:46:28 -07:00
mm/page_owner: don't define fields on struct page_ext by hard-coding
2016-10-07 18:46:27 -07:00
mm/page_owner: move page_owner specific function to page_owner.c
2016-10-07 18:46:27 -07:00
mm: split gfp_mask and mapping flags into separate fields
2016-10-11 15:06:34 -07:00
perf/powerpc: Don't call perf_event_disable() from atomic context
2016-10-28 11:06:25 +02:00
net: phy: add an option to disable EEE advertisement
2016-11-29 19:38:31 -05:00
net: phy: leds: add support for led triggers on phy link state change
2016-10-18 11:56:31 -04:00
net: pim: add all RFC7761 message types
2016-10-31 16:18:30 -04:00
pkeys: Remove easily triggered WARN
2016-10-14 11:36:59 -07:00
Merge remote-tracking branch 'jk/vfs' into work.misc
2016-10-08 11:06:08 -04:00
printk: reinstate KERN_CONT for printing continuation lines
2016-10-09 12:23:38 -07:00
net: add an ioctl to get a socket network namespace
2016-10-31 10:56:36 -04:00
ptp: Introduce a high resolution frequency adjustment method.
2016-11-09 21:19:53 -05:00
radix-tree: 'slot' can be NULL in radix_tree_next_slot()
2016-10-11 15:06:30 -07:00
This adds a new gcc plugin named "latent_entropy". It is designed to
2016-10-15 10:03:15 -07:00
Merge remote-tracking branches 'regmap/fix/header' and 'regmap/fix/macro' into regmap-linus
2016-10-29 12:14:39 -06:00
relay: Use irq_work instead of plain timer for deferred wakeup
2016-10-11 15:06:32 -07:00
sched/autogroup: Do not use autogroup->tg in zombie threads
2016-11-22 12:33:43 +01:00
ipv6: implement dataplane support for rthdr type 4 (Segment Routing Header)
2016-11-09 20:40:06 -05:00
ipv6: sr: add code base for control plane support of SR-IPv6
2016-11-09 20:40:06 -05:00
ipv6: sr: add core files for SR HMAC support
2016-11-09 20:40:06 -05:00
ipv6: sr: add support for SRH encapsulation and injection with lwtunnels
2016-11-09 20:40:06 -05:00
ipc/sem.c: fix complex_count vs. simple op race
2016-10-11 15:06:33 -07:00
seq/proc: modify seq_put_decimal_[u]ll to take a const char *, not char
2016-10-07 18:46:30 -07:00
net: fix bogus cast in skb_pagelen() and use unsigned variables
2016-11-19 22:11:25 -05:00
ARM: pxa: enhance smc91x platform data
2016-10-18 14:14:20 -04:00
Revert "net: stmmac: allow to split suspend/resume from init/exit callbacks"
2016-11-09 13:21:25 -05:00
mm, swap: add swap_cluster_list
2016-10-07 18:46:27 -07:00
generic syscalls: kill cruft from removed pkey syscalls
2016-10-17 09:50:56 -07:00
tcp: instrument tcp sender limits chronographs
2016-11-30 10:04:24 -05:00
sched/core, x86: Make struct thread_info arch specific again
2016-10-20 13:27:47 +02:00
Merge branch 'work.splice_read' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-10-10 13:38:49 -07:00
virtio_net: Do not clear memory for struct virtio_net_hdr twice.
2016-11-19 10:37:03 -05:00
watchdog: add watchdog pretimeout governor framework
2016-10-08 10:27:10 +02:00
mm, vmscan: get rid of throttle_vm_writeout
2016-10-07 18:46:27 -07:00
vfs: Remove {get,set,remove}xattr inode operations
2016-10-07 21:48:36 -04:00
