memory-limit

问题 I'm trying to read a file line by line. The problem is the file was too big(over 500000 line) and I reach out the memory limit. I wonder how to read the file without being memory limit. I'm thinking about the solution multi threads(like split the file into smaller group(100000 line per group) and read it in multi threads), but I don't know how to do it in detail. Please help me(Sorry for bad English). Here is my code $fn = fopen("myfile.txt", "r"); while(!feof($fn)) { $result = fgets($fn);

问题 Just wondering if there is a restriction on the max memory that a C++ application uses I understand that this is 2GB - Is that correct? If a C++ app tries to request more then 2GB memory does this cause a memory crash? Final question - If the machine the C++ app is running on is already low on memory and a C++ app asks for 100MB of array (ie contiguous memory) will the OS accommodate this by using virtual memory? 回答1: It will cause a dynamic memory allocation failure, which usually will make

问题 For bads reasons I need to set memory_limits higher than 1G for a directory, but on my PHP 5.2.17 on Lenny server when I put for example 2048M I get only the php.ini default value (256M). PHP run as an apache module, phpinfo give us (for the directory) memory_limit 1024M 256M suhosin.memory_limit 0 0 Is there a limitation due to apache module, or PHP conf? I know the server only have 4G of RAM, it's just a special script. 回答1: How are you trying to set the memory limit? phpinfo() shows

问题 I have a database composed of millions of training examples. Each is saved as its own numpy.memmap . (Yes, yes, I know, but they're of irregular sizes. I probably will modify my design to put like-size examples together in one memmap and hide that fact from the user.) Trying to open this database causes me to run in to the system NOFILES limits, but I've solved that part. Now I'm running in to OSError: [Errno 12] Cannot allocate memory after about 64865 memmaps are created, and executing most

问题 When we use ini_set like below in code, will memory limit be the same for all other codes? or only valid for in which code we added ? ini_set('memory_limit', '512M'); Thanks 回答1: It is only working for the file where it is written. Best way to change settings for multiple phps in the same folder are: 1. creating a file named ".htaccess" with the line php_value memory_limit '512M' Keep in mind, this only works, if you server configuration allowes "AllowOverride" directive for this directory 2.

问题 When we use ini_set like below in code, will memory limit be the same for all other codes? or only valid for in which code we added ? ini_set('memory_limit', '512M'); Thanks 回答1: It is only working for the file where it is written. Best way to change settings for multiple phps in the same folder are: 1. creating a file named ".htaccess" with the line php_value memory_limit '512M' Keep in mind, this only works, if you server configuration allowes "AllowOverride" directive for this directory 2.

问题 UPDATE: OK I figured it out, looks like fread has a filesize limitation, changed this to file_get_contents('php://input') , but now having SF give a java.net.SocketTimeoutException: Read timed out error and nothing on the PHP side. I have also added set_time_limit(0); to the PHP script which if I understand correctly execute the script for as long as it takes. Any thoughts? BTW: I can process up to 25 (that I've tested) but not 100 I'm using Salesforce to send outbound messages (via SOAP) to

问题 I'm running into an issue when trying to insert ~20K records into my DB. I notice that even though I'm echoing inside my foreach loop, I'm not getting anything outputted in the command line. Instead, I get an error after inserting ~9440 records relating to... Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 91 bytes) in /Users/me/Sites/Laravel/database/connection.php on line 293 Here is my code (tried using both Eloquent and Fluent): <?php class Process

问题 I'm need to check if memory_limit is at least 64M in my script installer. This is just part of PHP code that should work, but probably due to this "M" it's not reading properly the value. How to fix this ? //memory_limit echo "<phpmem>"; if(key_exists('PHP Core', $phpinfo)) { if(key_exists('memory_limit', $phpinfo['PHP Core'])) { $t=explode(".", $phpinfo['PHP Core']['memory_limit']); if($t[0]>=64) $ok=1; else $ok=0; echo "<val>{$phpinfo['PHP Core']['memory_limit']}</val><ok>$ok</ok>"; } else

问题 I know that there is another question with a similar title/error, but i think this is a different problem. Context: Running wordpress 3.6.1, PHP 5.3.27, MySql 5.1.70, on a shared Linux host, 1gb Memory. .htaccess: suPHP_ConfigPath /home/[username]/public_html php.ini: memory_limit = 512M (I tried 2048M, 1024M, 32M, .. heck even -1) I also tried ( ini_set(/* all the values above, in the WordPress index.php */) ) I disabled ALL plugins, I even re-enabled one by one. I have about 300-400