I am getting the following error:

[02-Nov-2016 19:38:35 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 314572800 bytes exhausted (tried to allocate 262144 bytes) in /myhome/user/html/vendor/elgg/elgg/engine/lib/elgglib.php on line 802
[02-Nov-2016 19:38:36 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 314572800 bytes exhausted (tried to allocate 262144 bytes) in /myhome/user/html/vendor/elgg/elgg/engine/classes/Elgg/Application.php on line 361
[02-Nov-2016 20:16:46 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 314572800 bytes exhausted (tried to allocate 32768 bytes) in /myhome/user/html/vendor/elgg/elgg/views/rss/river/item.php on line 1
[02-Nov-2016 21:41:02 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 314572800 bytes exhausted (tried to allocate 28672 bytes) in /myhome/user/html/mod/event_manager/views/default/river/event_relationship/create.php on line 15
[02-Nov-2016 22:38:37 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 314572800 bytes exhausted (tried to allocate 28672 bytes) in /myhome/user/html/mod/event_manager/views/default/river/event_relationship/create.php on line 15
[02-Nov-2016 22:38:43 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 314572800 bytes exhausted (tried to allocate 28672 bytes) in /myhome/user/html/mod/event_manager/views/default/river/event_relationship/create.php on line 15
[02-Nov-2016 22:41:13 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 314572800 bytes exhausted (tried to allocate 28672 bytes) in /myhome/user/html/mod/event_manager/views/default/river/event_relationship/create.php on line 15
[03-Nov-2016 14:55:34 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 314572800 bytes exhausted (tried to allocate 32768 bytes) in /myhome/user/html/mod/videos/views/default/river/object/videos/create.php on line 1
[03-Nov-2016 20:18:32 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 314572800 bytes exhausted (tried to allocate 32768 bytes) in /myhome/user/html/mod/videos/views/default/river/object/videos/create.php on line 1
[03-Nov-2016 22:39:07 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 314572800 bytes exhausted (tried to allocate 32768 bytes) in /myhome/user/html/vendor/elgg/elgg/views/rss/river/item.php on line 1
[03-Nov-2016 23:38:52 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 314572800 bytes exhausted (tried to allocate 32768 bytes) in /myhome/user/html/vendor/elgg/elgg/views/rss/river/item.php on line 1
[03-Nov-2016 23:38:53 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 314572800 bytes exhausted (tried to allocate 32768 bytes) in /myhome/user/html/vendor/elgg/elgg/views/rss/river/item.php on line 1
[03-Nov-2016 23:38:53 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 314572800 bytes exhausted (tried to allocate 32768 bytes) in /myhome/user/html/vendor/elgg/elgg/views/rss/river/item.php on line 1
[04-Nov-2016 06:41:00 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 314572800 bytes exhausted (tried to allocate 262144 bytes) in /myhome/user/html/vendor/elgg/elgg/engine/lib/elgglib.php on line 802
[04-Nov-2016 06:41:00 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 314572800 bytes exhausted (tried to allocate 262144 bytes) in /myhome/user/html/vendor/elgg/elgg/engine/classes/Elgg/Application.php on line 361
[04-Nov-2016 20:17:13 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 367001600 bytes exhausted (tried to allocate 32768 bytes) in /myhome/user/html/vendor/elgg/elgg/views/rss/river/item.php on line 1
[04-Nov-2016 23:38:29 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 367001600 bytes exhausted (tried to allocate 32768 bytes) in /myhome/user/html/vendor/elgg/elgg/views/rss/river/item.php on line 1
[05-Nov-2016 00:38:06 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 367001600 bytes exhausted (tried to allocate 32768 bytes) in /myhome/user/html/vendor/elgg/elgg/views/rss/river/item.php on line 1
[05-Nov-2016 00:38:06 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 367001600 bytes exhausted (tried to allocate 32768 bytes) in /myhome/user/html/vendor/elgg/elgg/views/rss/river/item.php on line 1
[05-Nov-2016 00:38:07 Asia/Kolkata] PHP Fatal error:  Allowed memory size of 367001600 bytes exhausted (tried to allocate 32768 bytes) in /myhome/user/html/vendor/elgg/elgg/views/rss/river/item.php on line 1

Earlier I had defined 300M for memory_limit in my php.ini file. After getting these error, I changed the memory_limit value to 350M on 4th November 2016. Now I am seeing that even 350M is exhausted.

Is this normal? Using 350 MB of memory?