Some parts of dpdk use their own management threads. Most of the time, the affinity of the thread is not properly set: it should not be scheduled on the dataplane cores, because interrupting them can cause packet losses.
This patchset introduces a new wrapper for thread creation that does the job automatically, avoiding code duplication. v3: * new patch: use this API in examples when relevant. * replace pthread_kill by pthread_cancel. Note that pthread_join() is still needed. * rebase: vfio and pdump do not have control pthreads anymore, and eal has 2 new pthreads * remove all calls to snprintf/strlcpy that truncate the thread name: all strings lengths are already < 16. v2: * set affinity to master core if no core is off, as suggested by Anatoly Olivier Matz (5): eal: use sizeof to avoid a double use of a define eal: new function to create control threads eal: set name when creating a control thread eal: set affinity for control threads examples: use new API to create control threads drivers/net/kni/Makefile | 1 + drivers/net/kni/rte_eth_kni.c | 3 +- examples/tep_termination/main.c | 16 +++---- examples/vhost/main.c | 19 +++----- lib/librte_eal/bsdapp/eal/eal.c | 4 +- lib/librte_eal/bsdapp/eal/eal_thread.c | 2 +- lib/librte_eal/common/eal_common_proc.c | 15 ++---- lib/librte_eal/common/eal_common_thread.c | 72 ++++++++++++++++++++++++++++ lib/librte_eal/common/include/rte_lcore.h | 26 ++++++++++ lib/librte_eal/linuxapp/eal/eal.c | 4 +- lib/librte_eal/linuxapp/eal/eal_interrupts.c | 17 ++----- lib/librte_eal/linuxapp/eal/eal_thread.c | 2 +- lib/librte_eal/linuxapp/eal/eal_timer.c | 12 +---- lib/librte_eal/rte_eal_version.map | 1 + lib/librte_vhost/socket.c | 25 ++-------- 15 files changed, 135 insertions(+), 84 deletions(-) -- 2.11.0
