1#!/system/bin/sh 2 3TRACE=/sys/kernel/debug/tracing/ 4dev=$(((8<<20) + 17)) # sdb1 (8,17) 5 6echo 1 > $TRACE/tracing_on 7 8# mmc tracepoints 9echo 0 > $TRACE/events/mmc/enable 10 11# block tracepoints 12#echo "dev == $dev" > $TRACE/events/block/block_rq_complete/filter 13echo 0 > $TRACE/events/block/block_rq_complete/enable 14echo 0 > $TRACE/events/block/block_bio_complete/enable 15 16# GC 17G=0 18echo $G > $TRACE/events/f2fs/f2fs_get_victim/enable 19 20# block allocation 21A=0 22echo $A > $TRACE/events/f2fs/f2fs_reserve_new_block/enable 23 24# block truncation 25T=0 26echo $T > $TRACE/events/f2fs/f2fs_truncate/enable 27echo $T > $TRACE/events/f2fs/f2fs_truncate_inode_blocks_enter/enable 28echo $T > $TRACE/events/f2fs/f2fs_truncate_inode_blocks_exit/enable 29echo $T > $TRACE/events/f2fs/f2fs_truncate_blocks_enter/enable 30echo $T > $TRACE/events/f2fs/f2fs_truncate_blocks_exit/enable 31echo $T > $TRACE/events/f2fs/f2fs_truncate_nodes_enter/enable 32echo $T > $TRACE/events/f2fs/f2fs_truncate_nodes_exit/enable 33echo $T > $TRACE/events/f2fs/f2fs_truncate_data_blocks_range/enable 34echo $T > $TRACE/events/f2fs/f2fs_truncate_node/enable 35echo $T > $TRACE/events/f2fs/f2fs_truncate_partial_nodes/enable 36 37# syscalls 38S=0 39echo $S > $TRACE/events/f2fs/f2fs_unlink_enter/enable 40echo $S > $TRACE/events/f2fs/f2fs_unlink_exit/enable 41echo $S > $TRACE/events/f2fs/f2fs_fallocate/enable 42echo $S > $TRACE/events/f2fs/f2fs_get_data_block/enable 43 44# IOs 45R=0 46W=0 47echo $R > $TRACE/events/f2fs/f2fs_readpage/enable 48echo $W > $TRACE/events/f2fs/f2fs_writepage/enable 49echo $W > $TRACE/events/f2fs/f2fs_write_begin/enable 50echo $W > $TRACE/events/f2fs/f2fs_write_end/enable 51 52echo 0 > $TRACE/events/f2fs/f2fs_submit_page_bio/enable 53echo 0 > $TRACE/events/f2fs/f2fs_submit_page_mbio/enable 54echo $R > $TRACE/events/f2fs/f2fs_submit_read_bio/enable 55echo $W > $TRACE/events/f2fs/f2fs_submit_write_bio/enable 56 57echo 0 > $TRACE/events/f2fs/f2fs_issue_discard/enable 58echo 0 > $TRACE/events/f2fs/f2fs_issue_flush/enable 59 60# VFS interfaces 61V=0 62echo $V > $TRACE/events/f2fs/f2fs_iget/enable 63echo $V > $TRACE/events/f2fs/f2fs_iget_exit/enable 64echo $V > $TRACE/events/f2fs/f2fs_new_inode/enable 65echo $V > $TRACE/events/f2fs/f2fs_evict_inode/enable 66echo $V > $TRACE/events/f2fs/f2fs_sync_file_enter/enable 67echo $V > $TRACE/events/f2fs/f2fs_sync_file_exit/enable 68echo $V > $TRACE/events/f2fs/f2fs_write_checkpoint/enable 69echo $V > $TRACE/events/f2fs/f2fs_sync_fs/enable 70 71cat $TRACE/trace_pipe 72