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-jun20 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 (4): colo-compare: introduce colo compare initialization colo-compare: track connection and enqueue packet colo-compare: introduce packet comparison thread colo-compare: add TCP,UDP,ICMP packet comparison include/qemu/jhash.h | 61 +++++ net/Makefile.objs | 2 + net/colo-base.c | 195 ++++++++++++++ net/colo-base.h | 91 +++++++ net/colo-compare.c | 742 +++++++++++++++++++++++++++++++++++++++++++++++++++ qemu-options.hx | 34 +++ trace-events | 11 + vl.c | 3 +- 8 files changed, 1138 insertions(+), 1 deletion(-) 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
