From f1cb688da5687fd7cec704af1d38058368525ca4 Mon Sep 17 00:00:00 2001 From: Manuel Bentele Date: Wed, 5 Jun 2019 01:24:20 +0200 Subject: Added function traces of the loop device kernel module --- analysis/loop/ftrace/loop_device_add.txt | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 analysis/loop/ftrace/loop_device_add.txt (limited to 'analysis/loop/ftrace/loop_device_add.txt') diff --git a/analysis/loop/ftrace/loop_device_add.txt b/analysis/loop/ftrace/loop_device_add.txt new file mode 100644 index 0000000..e77e5ca --- /dev/null +++ b/analysis/loop/ftrace/loop_device_add.txt @@ -0,0 +1,28 @@ + losetup-26893 [000] 23442.832217: funcgraph_entry: | loop_control_ioctl() { + losetup-26893 [000] 23442.832219: funcgraph_entry: | loop_lookup.part.7() { + losetup-26893 [000] 23442.832220: funcgraph_entry: 0.426 us | find_free_cb(); + losetup-26893 [000] 23442.832221: funcgraph_exit: 2.140 us | } + losetup-26893 [000] 23442.832221: funcgraph_exit: 5.796 us | } + losetup-26893 [000] 23442.832366: funcgraph_entry: 0.817 us | lo_open(); + losetup-26893 [000] 23442.832374: funcgraph_entry: | lo_ioctl() { + losetup-26893 [000] 23442.832375: funcgraph_entry: | loop_set_fd() { + losetup-26893 [000] 23442.832377: funcgraph_entry: 0.230 us | loop_validate_file(); + losetup-26893 [000] 23442.832377: funcgraph_entry: ! 269.316 us | loop_prepare_queue(); + losetup-26893 [000] 23442.832649: funcgraph_entry: 0.667 us | __loop_update_dio(); + loop0-26894 [001] 23442.832714: funcgraph_entry: | loop_kthread_worker_fn() { + losetup-26893 [001] 23442.834887: funcgraph_exit: # 2511.581 us | } + losetup-26893 [001] 23442.834888: funcgraph_exit: # 2513.226 us | } + losetup-26893 [001] 23442.834893: funcgraph_entry: | lo_ioctl() { + losetup-26893 [001] 23442.834894: funcgraph_entry: | loop_set_status64() { + losetup-26893 [001] 23442.834894: funcgraph_entry: | loop_set_status() { +systemd-udevd-26895 [000] 23442.836880: funcgraph_entry: | lo_open() { + losetup-26893 [001] 23442.858173: funcgraph_entry: 3.027 us | loop_release_xfer(); + losetup-26893 [001] 23442.858176: funcgraph_entry: 2.220 us | loop_config_discard(); + losetup-26893 [001] 23442.858179: funcgraph_entry: 0.786 us | __loop_update_dio(); + losetup-26893 [001] 23442.858187: funcgraph_exit: # 23292.836 us | } + losetup-26893 [001] 23442.858187: funcgraph_exit: # 23293.764 us | } + losetup-26893 [001] 23442.858188: funcgraph_exit: # 23294.529 us | } +systemd-udevd-26895 [000] 23442.858250: funcgraph_exit: # 21370.451 us | } + losetup-26893 [001] 23442.858266: funcgraph_entry: 1.190 us | lo_release(); +systemd-udevd-267 [000] 23442.859186: funcgraph_entry: 1.873 us | lo_open(); +systemd-udevd-267 [000] 23442.859223: funcgraph_entry: 0.833 us | lo_release(); -- cgit v1.2.3-55-g7522