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2019-05-24Clean up multi-thread barrier-sync hold-down timerstable/1807Dave Barach1-1/+4
Main thread: don't bother with the barrier sync hold-down timer if none of the worker threads are busy. Worker threads: avoid epoll_pwait (10ms timeout) when the control-plane has been active in the last half-second. Cherry-pick a recent dangling reference fix: pool_elt_at_index after e.g. rx callback is required, in case the unix file pool expands. Manual feature backport to 18.07 Change-Id: I745fbb8a12aeda34b0ec7b6dcda66c0e25c3eee1 Signed-off-by: Dave Barach <dave@barachs.net>
2018-06-03dpdk: improve buffer alloc perfomanceDamjan Marion1-2/+0
This is ~50% improvement in buffer alloc performance. For a 256 buffer allocation, it was ~10 clocks/buffer, now is < 5 clocks. Change-Id: I97590e240a79a42bcab5eb26587fc2d11e6eb163 Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-03-27vlib: make cloned structures cacheline alignedDamjan Marion1-0/+1
This address crash with gcc-7 observed when -o3 is used. Change-Id: I10e87da8e5037ad480eba7fb0aaa9a657d3bf48d Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-03-14vlib: internal buffer manager reworkDamjan Marion1-1/+5
- buffer_main is no longer part of vlib_main_t - pool of free lists is still part of vlib_main_t - mheap is not used anymore for buffer allocation - simple bitmap bassed buffer alloc scheme is introduced Change-Id: I3e1e6d00e2c8122293ed0a741245eb841315a1ff Signed-off-by: Damjan Marion <damarion@cisco.com>
2018-03-05physmem: keep only one physmem_mainDamjan Marion1-2/+0
We don't need per vlib_main physmem_main, so keep it separatelly instead of trying to keep them in sync. Change-Id: I0fbeecf4d9672d31af7a43c640a7d8f05dd6e46f Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-12-15VPP-1102: fix dangling references in RPC handlingDave Barach1-0/+3
Queue RPC calls and send them from the main dispatch loop. As things stood, if the vpp main input queue filled, worker threads could enter a barrier-sync spin-wait in the middle of processing a frame. If thread 0 decided to recreate worker thread data structures, the worker thread(s) could easily crash. Legislate the problem out of existence by enqueueing RPC messages only from the main dispatch loop. At that point, doing a barrier-sync wait is perfectly OK. Change-Id: I18da3e44bb1f29a63fe5f30cf11de732ecfd5bf7 Signed-off-by: Dave Barach <dave@barachs.net>
2017-10-14VPP-1029: Don't call clib_longjmp(...) directly from the SIGTERM handlerDave Barach1-0/+5
It's way too easy to imagine leaving a mutex or a spin-lock held in the /vpe-api shared-memory segment, or elsewhere. Set a volatile variable and check it in a safe place... Change-Id: I9d91c38cffeb921143c272162d055c9c24a6c312 Signed-off-by: Dave Barach <dave@barachs.net>
2017-09-11Recombine diags and minimum barrier open time changes (VPP-968)Colin Tregenza Dancer1-0/+9
Support logging to both syslog and elog Also include DaveB is_mp_safe fix, which had been lost Change-Id: If82f7969e2f43c63c3fed5b1a0c7434c90c1f380 Signed-off-by: Colin Tregenza Dancer <ctd@metaswitch.com>
2017-09-07vlib physmem reworkDamjan Marion1-2/+14
This patch adds supprot support for multiple numa-aware physmem regions. Change-Id: I5c69a6f4da33c8ee21bdb8604d52fd2886f2327e Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-09-05Refork worker thread data structures in parallel (VPP-970)Colin Tregenza Dancer1-0/+6
Change the rebuilding of worker thread clone datastructures to run in parallel on the workers, instead of serially on main. Change-Id: Ib76bcfbef1e51f2399972090f4057be7aaa84e08 Signed-off-by: Colin Tregenza Dancer <ctd@metaswitch.com>
2017-05-16VPP-845: add configurable elog post-mortem dumpDave Barach1-0/+4
Off by default. Enable via cmdline "... vlib { elog-post-mortem-dump } ..." Change-Id: I2056b9de9b37475f2bfeeb5404da838f1b42645a Signed-off-by: Dave Barach <dave@barachs.net>
2017-05-10completelly deprecate os_get_cpu_number, replace new occurencesDamjan Marion1-1/+1
Change-Id: I82c663bc0866c6c68ba354104b0bb059387f4b9d Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-04-06Use thread local storage for thread indexDamjan Marion1-1/+1
This patch deprecates stack-based thread identification, Also removes requirement that thread stacks are adjacent. Finally, possibly annoying for some folks, it renames all occurences of cpu_index and cpu_number with thread index. Using word "cpu" is misleading here as thread can be migrated ti different CPU, and also it is not related to linux cpu index. Change-Id: I68cdaf661e701d2336fc953dcb9978d10a70f7c1 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-31vlib: extend foreach_vlib_main macro to assert if workers are not parkedDamjan Marion1-0/+3
Change-Id: I6ff7b65a400734a47bc0a7d03faf86ef1cf4f8c8 Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-16vlib: make runtime_data thread-localDamjan Marion1-0/+1
Change-Id: I4aa3e7e42fb81211de1aed07dc7befee87a1e18b Signed-off-by: Damjan Marion <damarion@cisco.com>
2017-03-10vlib: deduplicatee code in main and worker main loopDamjan Marion1-0/+2
Change-Id: Id18d59c9442602633a6310b2001a95bce8b6b232 Signed-off-by: Damjan Marion <damarion@cisco.com>
2016-12-28Reorganize source tree to use single autotools instanceDamjan Marion1-0/+333
Change-Id: I7b51f88292e057c6443b12224486f2d0c9f8ae23 Signed-off-by: Damjan Marion <damarion@cisco.com>