# system call counts, by pid # (c) 2010, Tom Zanussi # Licensed under the terms of the GNU GPL License version 2 # # Displays system-wide system call totals, broken down by syscall. # If a [comm] arg is specified, only syscalls called by [comm] are displayed. from __future__ import print_function import os, sys sys.path.append(os.environ['PERF_EXEC_PATH'] + \ '/scripts/python/Perf-Trace-Util/lib/Perf/Trace') from perf_trace_context import * from Core import * from Util import syscall_name usage = "perf script -s syscall-counts-by-pid.py [comm]\n"; for_comm = None for_pid = None if len(sys.argv) > 2: sys.exit(usage) if len(sys.argv) > 1: try: for_pid = int(sys.argv[1]) except: for_comm = sys.argv[1] syscalls = autodict() def trace_begin(): print("Press control+C to stop and show the summary") def trace_end(): print_syscall_totals() def raw_syscalls__sys_enter(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, common_callchain, id, args): if (for_comm and common_comm != for_comm) or \ (for_pid and common_pid != for_pid ): return try: syscalls[common_comm][common_pid][id] += 1 except TypeError: syscalls[common_comm][common_pid][id] = 1 def syscalls__sys_enter(event_name, context, common_cpu, common_secs, common_nsecs, common_pid, common_comm, id, args): raw_syscalls__sys_enter(**locals()) def print_syscall_totals(): if for_comm is not None: print("\nsyscall events for %s:\n" % (for_comm)) else: print("\nsyscall events by comm/pid:\n") print("%-40s %10s" % ("comm [pid]/syscalls", "count")) print("%-40s %10s" % ("----------------------------------------", "----------")) comm_keys = syscalls.keys() for comm in comm_keys: pid_keys = syscalls[comm].keys() for pid in pid_keys: print("\n%s [%d]" % (comm, pid)) id_keys = syscalls[comm][pid].keys() for id, val in sorted(syscalls[comm][pid].items(), key = lambda kv: (kv[1], kv[0]), reverse = True): print(" %-38s %10d" % (syscall_name(id), val)) value='linux-2.6.31.y'>linux-2.6.31.y Hosts the 0x221E linux distro kernel.Ubuntu
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path: root/Documentation/trace/postprocess
ls in a whole chunk of the Crypto API. In fact all users of t10-pi work as modules and there is no reason for it to always be built-in. This patch adds a new hidden option for t10-pi that is selected automatically based on BLK_DEV_INTEGRITY and whether the users of t10-pi are built-in or not. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Jens Axboe <axboe@kernel.dk>
AgeCommit message (Expand)Author
2019-05-14mm: move recent_rotated pages calculation to shrink_inactive_list()Kirill Tkhai
2019-10-07block: Fix three kernel-doc warningsBart Van Assche
Fix the following kernel-doc warnings: block/t10-pi.c:242: warning: Function parameter or member 'rq' not described in 't10_pi_type3_prepare' block/t10-pi.c:249: warning: Function parameter or member 'rq' not described in 't10_pi_type3_complete' block/t10-pi.c:249: warning: Function parameter or member 'nr_bytes' not described in 't10_pi_type3_complete' Cc: Max Gurtovoy <maxg@mellanox.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Ming Lei <ming.lei@redhat.com> Cc: Hannes Reinecke <hare@suse.com> Cc: Johannes Thumshirn <jthumshirn@suse.de> Fixes: 54d4e6ab91eb ("block: centralize PI remapping logic to the block layer") Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-09-23block: t10-pi: fix -Wswitch warningMax Gurtovoy
Changing the switch() statement to symbolic constants made the compiler (at least clang-9, did not check gcc) notice that there is one enum value that is not handled here: block/t10-pi.c:62:11: error: enumeration value 'T10_PI_TYPE0_PROTECTION' not handled in switch [-Werror,-Wswitch] Add a BUG_ON statement if we ever get to t10_pi_verify function with TYPE0 and replace the switch() statement with if/else clause for the valid types. Fixes: 9b2061b1a262 ("block: use symbolic constants for t10_pi type") Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-09-17block: centralize PI remapping logic to the block layerMax Gurtovoy
Currently t10_pi_prepare/t10_pi_complete functions are called during the NVMe and SCSi layers command preparetion/completion, but their actual place should be the block layer since T10-PI is a general data integrity feature that is used by block storage protocols. Introduce .prepare_fn and .complete_fn callbacks within the integrity profile that each type can implement according to its needs. Suggested-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Suggested-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Fixed to not call queue integrity functions if BLK_DEV_INTEGRITY isn't defined in the config. Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-09-17block: use symbolic constants for t10_pi typeMax Gurtovoy
Replace all hard-coded values with T10_PI_TYPES to make the code more readable. Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-04-30block: switch all files cleared marked as GPLv2 to SPDX tagsChristoph Hellwig
All these files have some form of the usual GPLv2 boilerplate. Switch them to use SPDX tags instead. Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>