W swojej aplikacji wykorzystuje cache oparty na APCU
problem w tym  że mam ustawiony default_expire na 3600 (1h) a jego ważność kończy się zwykle po kilku minutach... Tak obstawiam że jest to problem z czasem jego ważności
gdyż po kilku minutach aplikacja znów chodzi wolno, tak jak bez używania cachce..

próbowałem też cachce opartym na plikach (framework kohana) sytuacja jest identyczna...

Ktoś wie o co chodzi ?

Przepełnia Ci się pewnie cache i "stare" dane są wywalane z cacha.

@maly_swd kurcze może być
generalnie czasami jak wywali cache i musi wszystko apka od nowa obrobić to wywala nawet błąd że 1gb pamięci to za mało... ale po tym błędzie zrobie odśwież to już za drugim
razem dokończy robote...

w którym kierunku szukać rozwiązania tego tematu... ktoś coś ?

Jeszcze Xdebug może być problemem o którym piszesz (1GB ram)

Xdebug mam wyłączony...

To może wklej phpinfo tutaj i konfig acpu?

blad ktory zawsze prawie otrzymuje gdy cache "wyparuje"
Fatal error: Allowed memory size of 1073741824 bytes exhausted (tried to allocate 72 bytes) in...



PHP INFO

[PHP] pobierz, plaintext 
Configure Command 	'./configure' '--with-apxs2' '--with-config-file-scan-dir=/usr/local/lib/php.conf.d' '--with-curl=/usr/local/lib' '--with-gd' '--enable-gd-native-ttf' '--with-gettext' '--with-jpeg-dir=/usr/local/lib' '--with-freetype-dir=/usr/local/lib' '--with-libxml-dir=/usr/local/lib' '--with-kerberos' '--with-openssl' '--with-mcrypt' '--with-mhash' '--with-mysql=mysqlnd' '--with-mysql-sock=/var/lib/mysql/mysql.sock' '--with-mysqli=mysqlnd' '--with-pcre-regex=/usr/local' '--with-pdo-mysql=mysqlnd' '--with-pear' '--with-png-dir=/usr/local/lib' '--with-xsl' '--with-zlib' '--with-zlib-dir=/usr/local/lib' '--enable-zip' '--with-iconv=/usr/local' '--enable-bcmath' '--enable-calendar' '--enable-ftp' '--enable-sockets' '--enable-soap' '--enable-mbstring' '--with-icu-dir=/usr/local/icu' '--with-mssql=/usr/local/freetds' '--with-unixODBC=/usr' '--with-pdo-odbc=unixODBC' '--enable-intl'
Server API 	Apache 2.0 Handler
Virtual Directory Support 	disabled
Configuration File (php.ini) Path 	/usr/local/lib
Loaded Configuration File 	/usr/local/lib/php.ini
Scan this dir for additional .ini files 	/usr/local/lib/php.conf.d
Additional .ini files parsed 	/usr/local/lib/php.conf.d/50-webapps.ini
PHP API 	20131106
PHP Extension 	20131226
Zend Extension 	220131226
Zend Extension Build 	API220131226,NTS
PHP Extension Build 	API20131226,NTS
Debug Build 	no
Thread Safety 	disabled
Zend Signal Handling 	disabled
Zend Memory Manager 	enabled
Zend Multibyte Support 	provided by mbstring
IPv6 Support 	enabled
DTrace Support 	disabled
Registered PHP Streams	https, ftps, compress.zlib, php, file, glob, data, http, ftp, phar, zip
Registered Stream Socket Transports	tcp, udp, unix, udg, ssl, sslv3, sslv2, tls, tlsv1.0, tlsv1.1, tlsv1.2
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[PHP] pobierz, plaintext 

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PHP Version 5.6.4
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always_populate_raw_post_data 0 0
arg_separator.input & &
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asp_tags Off Off
auto_append_file no value no value
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auto_prepend_file no value no value
browscap no value no value
default_charset UTF-8 UTF-8
default_mimetype text/html text/html
disable_classes no value no value
disable_functions no value no value
display_errors On Off
display_startup_errors Off Off
doc_root no value no value
docref_ext no value no value
docref_root no value no value
enable_dl Off Off
enable_post_data_reading On On
error_append_string no value no value
error_log no value no value
error_prepend_string no value no value
error_reporting 24575 24575
exit_on_timeout Off Off
expose_php On On
extension_dir /usr/local/lib/php/extensions/no-debug-non-zts-20131226 /usr/local/lib/php/extensions/no-debug-non-zts-20131226
file_uploads On On
highlight.comment #FF8000 #FF8000
highlight.default #0000BB #0000BB
highlight.html #000000 #000000
highlight.keyword #007700 #007700
highlight.string #DD0000 #DD0000
html_errors Off Off
ignore_repeated_errors Off Off
ignore_repeated_source Off Off
ignore_user_abort Off Off
implicit_flush Off Off
include_path .:/usr/local/lib/php .:/usr/local/lib/php
input_encoding no value no value
internal_encoding no value no value
log_errors On On
log_errors_max_len 1024 1024
mail.add_x_header On On
mail.force_extra_parameters no value no value
mail.log /home/ixx/.php/php-mail.log no value
max_execution_time 900 900
max_file_uploads 20 20
max_input_nesting_level 64 64
max_input_time 60 60
max_input_vars 1000 1000
memory_limit 1024M 512M
open_basedir /home/ixx/:/tmp:/var/tmp:/usr/local/lib/php/:/usr/local/php56/lib/php/:/usr/local/php53/lib/php/ no value
output_buffering 4096 4096
output_encoding no value no value
output_handler no value no value
post_max_size 513M 164M
precision 14 14
realpath_cache_size 16K 16K
realpath_cache_ttl 120 120
register_argc_argv Off Off
report_memleaks On On
report_zend_debug On On
request_order GP GP
sendmail_from no value no value
sendmail_path /usr/sbin/sendmail -t -i -f in@xx.pl /usr/sbin/sendmail -t -i
serialize_precision 17 17
short_open_tag On On
SMTP localhost localhost
smtp_port 25 25
sql.safe_mode Off Off
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track_errors Off Off
unserialize_callback_func spl_autoload_call no value
upload_max_filesize 513M 100M
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user_ini.cache_ttl 300 300
user_ini.filename .user.ini .user.ini
variables_order GPCS GPCS
xmlrpc_error_number 0 0
xmlrpc_errors Off Off
zend.detect_unicode On On
zend.enable_gc On On
zend.multibyte Off Off
zend.script_encoding


apc
APC support Emulated
apcu
APCu Support Enabled
Version 4.0.10
APCu Debugging Disabled
MMAP Support Enabled
MMAP File Mask no value
Serialization Support php
Revision $Revision: 328290 $
Build Date Sep 22 2016 21:42:23
Directive Local Value Master Value
apc.coredump_unmap Off Off
apc.enable_cli Off Off
apc.enabled On On
apc.entries_hint 4096 4096
apc.gc_ttl 3600 3600
apc.mmap_file_mask no value no value
apc.preload_path no value no value
apc.rfc1867 Off Off
apc.rfc1867_freq 0 0
apc.rfc1867_name APC_UPLOAD_PROGRESS APC_UPLOAD_PROGRESS
apc.rfc1867_prefix upload_ upload_
apc.rfc1867_ttl 3600 3600
apc.serializer php php
apc.shm_segments 1 1
apc.shm_size 32M 32M
apc.slam_defense On On
apc.smart 0 0
apc.ttl 0 0
apc.use_request_time On On
apc.writable /tmp /tmp[/php]