2020-07-20 08시 개발자 글 모음 | "[leetCode] 137. Sin" 외 6개 이야기

Ubuntu 20.04에 CUDA Toolkit와 cuDNN, Tensorflow 설치하기 by 이정주 about Ubuntu

webnautes@webnautes-pc:~$ sudo cp cuda/lib64/libcudnn* /usr/local/cuda/lib64
webnautes@webnautes-pc:~$ ldconfig -N -v $(sed 's/:/ /' <<< $LD_LIBRARY_PATH) 2>/dev/null | grep libcudnn
(tf2) webnautes@webnautes-pc:~$ pip list | grep tensorflow

[leetCode] 383. Ransom Note (Python) by 장동현 about Python

write a function that will return true if the ransom note can be constructed from the magazines ; otherwise
magazine: str) -> bool: answer = True ran_list = list(ransomNote) mag_list = list(magazine) ran_cnt = dict(Counter(ran_list)) mag_cnt = dict(Counter(mag_list)) ran_keys = ran_cnt
keys() for r_key in ran_keys: if r_key not in mag_keys: answer = False break check = mag_cnt[r_key] - ran_cnt[r_key] if check < 0: answer = False break return answer

[MySQL][InnoDB] 성능 스키마와 InnoDB 통합 by 이정해 about MySQL,SQL

| wait/io/file/innodb/innodb_data_file | YES | YES | | wait/io/file/innodb/innodb_log_file | YES | YES | | wait/io/file/innodb/innodb_temp_file | YES | YES | | stage/innodb/alter table (end) | YES | YES | | stage/innodb/alter table (flush) | YES | YES | | stage/innodb/alter table (insert) | YES | YES | | stage/innodb/alter table (log apply index) | YES | YES | | stage/innodb/alter table (log apply table) | YES | YES | | stage/innodb/alter table (merge sort) | YES | YES | | stage/innodb/alter table (read PK and internal sort) | YES | YES | | stage/innodb/buffer pool load | YES | YES | | memory/innodb/buf_buf_pool | NO | NO | | memory/innodb/dict_stats_bg_recalc_pool_t | NO | NO | | memory/innodb/dict_stats_index_map_t | NO | NO | | memory/innodb/dict_stats_n_diff_on_level | NO | NO | | memory/innodb/other | NO | NO | | memory/innodb/row_log_buf | NO | NO | | memory/innodb/row_merge_sort | NO | NO | memory/innodb/std | NO | NO | | memory/innodb/sync_debug_latches | NO | NO | | memory/innodb/trx_sys_t::rw_trx_ids | NO | NO |
setup_instruments WHERE NAME LIKE '%wait/synch/mutex/innodb%'; +-------------------------------------------------------+---------+-------+ | NAME | ENABLED | TIMED | +-------------------------------------------------------+---------+-------+ | wait/synch/mutex/innodb/commit_cond_mutex | NO | NO | | wait/synch/mutex/innodb/innobase_share_mutex | NO | NO | | wait/synch/mutex/innodb/autoinc_mutex | NO | NO | | wait/synch/mutex/innodb/buf_pool_mutex | NO | NO | | wait/synch/mutex/innodb/buf_pool_zip_mutex | NO | NO | | wait/synch/mutex/innodb/cache_last_read_mutex | NO | NO | | wait/synch/mutex/innodb/dict_foreign_err_mutex | NO | NO | | wait/synch/mutex/innodb/dict_sys_mutex | NO | NO | | wait/synch/mutex/innodb/recalc_pool_mutex | NO | NO | | wait/synch/mutex/innodb/file_format_max_mutex | NO | NO | | wait/synch/mutex/innodb/fil_system_mutex | NO | NO | | wait/synch/mutex/innodb/flush_list_mutex | NO | NO | | wait/synch/mutex/innodb/fts_bg_threads_mutex | NO | NO | | wait/synch/mutex/innodb/fts_delete_mutex | NO | NO | | wait/synch/mutex/innodb/fts_optimize_mutex | NO | NO | | wait/synch/mutex/innodb/fts_doc_id_mutex | NO | NO | | wait/synch/mutex/innodb/log_flush_order_mutex | NO | NO | | wait/synch/mutex/innodb/hash_table_mutex | NO | NO | | wait/synch/mutex/innodb/ibuf_bitmap_mutex | NO | NO | | wait/synch/mutex/innodb/ibuf_mutex | NO | NO | | wait/synch/mutex/innodb/ibuf_pessimistic_insert_mutex | NO | NO | | wait/synch/mutex/innodb/log_sys_mutex | NO | NO | | wait/synch/mutex/innodb/page_zip_stat_per_index_mutex | NO | NO | | wait/synch/mutex/innodb/purge_sys_pq_mutex | NO | NO | | wait/synch/mutex/innodb/recv_sys_mutex | NO | NO | | wait/synch/mutex/innodb/recv_writer_mutex | NO | NO | | wait/synch/mutex/innodb/redo_rseg_mutex | NO | NO | | wait/synch/mutex/innodb/noredo_rseg_mutex | NO | NO | | wait/synch/mutex/innodb/rw_lock_list_mutex | NO | NO | | wait/synch/mutex/innodb/rw_lock_mutex | NO | NO | | wait/synch/mutex/innodb/srv_dict_tmpfile_mutex | NO | NO | | wait/synch/mutex/innodb/srv_innodb_monitor_mutex | NO | NO | | wait/synch/mutex/innodb/srv_misc_tmpfile_mutex | NO | NO | | wait/synch/mutex/innodb/srv_monitor_file_mutex | NO | NO | | wait/synch/mutex/innodb/buf_dblwr_mutex | NO | NO | | wait/synch/mutex/innodb/trx_undo_mutex | NO | NO | | wait/synch/mutex/innodb/trx_pool_mutex | NO | NO | | wait/synch/mutex/innodb/trx_pool_manager_mutex | NO | NO | | wait/synch/mutex/innodb/srv_sys_mutex | NO | NO | | wait/synch/mutex/innodb/lock_mutex | NO | NO | | wait/synch/mutex/innodb/lock_wait_mutex | NO | NO | | wait/synch/mutex/innodb/trx_mutex | NO | NO | | wait/synch/mutex/innodb/srv_threads_mutex | NO | NO | | wait/synch/mutex/innodb/rtr_active_mutex | NO | NO | | wait/synch/mutex/innodb/rtr_match_mutex | NO | NO | | wait/synch/mutex/innodb/rtr_path_mutex | NO | NO | | wait/synch/mutex/innodb/rtr_ssn_mutex | NO | NO | | wait/synch/mutex/innodb/trx_sys_mutex | NO | NO | | wait/synch/mutex/innodb/zip_pad_mutex | NO | NO | +-------------------------------------------------------+---------+-------+ 49 rows in set (0
setup_consumers; +----------------------------------+---------+ | NAME | ENABLED | +----------------------------------+---------+ | events_stages_current | NO | | events_stages_history | NO | | events_stages_history_long | NO | | events_statements_current | YES | | events_statements_history | YES | | events_statements_history_long | NO | | events_transactions_current | YES | | events_transactions_history | YES | | events_transactions_history_long | NO | | events_waits_current | YES | | events_waits_history | YES | | events_waits_history_long | YES | | global_instrumentation | YES | | thread_instrumentation | YES | | statements_digest | YES | +----------------------------------+---------+ 15 rows in set (0