COLO-compare is a part of COLO project. It is used to compare the network package to help COLO decide whether to do checkpoint.
The full version in this github: https://github.com/zhangckid/qemu/tree/colo-v2.7-proxy-mode-compare-with-colo-base-jul22 v9: p5: - use chr_update_read_handler_full() replace the chr_update_read_handler() - use io_watch_poll_prepare_full() replace the io_watch_poll_prepare() - use io_watch_poll_funcs_full replace the io_watch_poll_funcs - avoid code duplication v8: p5: - add new patch: qemu-char: Add qemu_chr_add_handlers_full() for GMaincontext v7: p5: - add [PATCH]qemu-char: Fix context for g_source_attach() in this patch series. v6: p6: - add more commit log. - fix icmp comparison to compare all packet. p5: - add more cpmments in commit log. - change REGULAR_CHECK_MS to REGULAR_PACKET_CHECK_MS - make check old packet independent to compare thread - remove thread_status p4: - change this patch only about Connection and ConnectionKey. - add some comments in commit log. - remove mode in fill_connection_key(). - fix some comments and bug. - move colo_conn_state to patch of "work with colo-frame" - remove conn_list_lock. - add MAX_QUEUE_SIZE, if primary_list or secondary_list biger than MAX_QUEUE_SIZE we will drop packet. p3: - add new independent kernel jhash patch. p2: - add new independent colo-base patch. p1: - add a ascii figure and some comments to explain it - move trace.h to p2 - move QTAILQ_HEAD(, CompareState) net_compares to patch of "work with colo-frame" - add some comments in qemu-option.hx v5: p3: - comments from Jason we poll and handle chardev in comapre thread, Through this way, there's no need for extra synchronization with main loop this depend on another patch: qemu-char: Fix context for g_source_attach() - remove QemuEvent p2: - remove conn->list_lock p1: - move compare_pri/sec_chr_in to p3 - move compare_chr_send to p2 v4: p4: - add some comments - fix some trace-events - fix tcp compare error p3: - add rcu_read_lock(). - fix trace name - fix jason's other comments - rebase some Dave's branch function p2: - colo_compare_connection() change g_queue_push_head() to - g_queue_push_tail() match to sorted order. - remove pkt->s - move data structure to colo-base.h - add colo-base.c reuse codes for filter-rewriter - add some filter-rewriter needs struct - depends on previous SocketReadState patch p1: - except move qemu_chr_add_handlers() to colo thread - remove class_finalize - remove secondary arp codes - depends on previous SocketReadState patch v3: - rebase colo-compare to colo-frame v2.7 - fix most of Dave's comments (except RCU) - add TCP,UDP,ICMP and other packet comparison - add trace-event - add some comments - other bug fix - add RFC index - add usage in patch 1/4 v2: - add jhash.h v1: - initial patch Zhang Chen (7): colo-compare: introduce colo compare initialization colo-base: add colo-base to define and handle packet Jhash: add linux kernel jhashtable in qemu colo-compare: track connection and enqueue packet qemu-char: Add qemu_chr_add_handlers_full() for GMaincontext colo-compare: introduce packet comparison thread colo-compare: add TCP,UDP,ICMP packet comparison include/qemu/jhash.h | 61 ++++ include/sysemu/char.h | 11 +- net/Makefile.objs | 2 + net/colo-base.c | 183 ++++++++++++ net/colo-base.h | 71 +++++ net/colo-compare.c | 765 ++++++++++++++++++++++++++++++++++++++++++++++++++ qemu-char.c | 119 +++++--- qemu-options.hx | 38 +++ trace-events | 9 + vl.c | 3 +- 10 files changed, 1215 insertions(+), 47 deletions(-) create mode 100644 include/qemu/jhash.h create mode 100644 net/colo-base.c create mode 100644 net/colo-base.h create mode 100644 net/colo-compare.c -- 2.7.4
