By IBM Redbooks, Marc Bouzigues
This IBM Redbook specializes in the diversities brought in AIX 5L via model 5.2 when put next to AIX model 4.3.3. it's meant to aid approach directors, builders, and clients comprehend those improvements and review capability merits of their personal environments.AIX 5L introduces many new positive factors, together with Linux and approach V affinity, dynamic LPAR, multipath I/O, 32- and 64-bit kernel and alertness help, digital IP, caliber of carrier improvements, better mistakes logging, dynamic paging house relief, hot-spare disk administration, complex Workload supervisor, JFS2 picture snapshot, and others. the provision of Web-based procedure supervisor for Linux maintains AIX's circulate in the direction of a customary, unified interface for approach instruments. there are numerous different improvements to be had with AIX 5L, and you may discover them during this redbook.For buyers who're acquainted with AIX 5L model 5.1, positive factors which are new in AIX 5L model 5.2 are indicated by means of a model quantity (5.2.0) within the identify of the part.
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Extra resources for AIX 5L Differences Guide Version 5.2 Edition
The reaper thread is awakened by the swapper as necessary to perform the cleanup. If the parent does not either relinquish its interest in its child’s exit value (by ignoring SIGCHLD) or retrieve that value using one of the wait() system calls, its child processes are reparented to the init process as the parent exits. The init process is then responsible for using the use wait() system call to clean up the orphaned child processes. Children that have already exited before the parent exits are already zombies, and init can clean them up immediately.
3. 0) in the title of the section. The team that wrote this redbook This redbook was produced by a team of specialists from around the world working at the International Technical Support Organization, Austin Center. Marc Bouzigues is the benchmarking manager at the PSSC center in Montpellier, France. His responsibilities include overseeing the pSeries benchmarking (AIX environment) for complex customer environments. He architects overall solutions to meet his customer needs while handling the project management responsibilities of the center.
This applies to 32-bit processes only. The DSA keyword for the LDR_CNTRL environment variable and the extended maxdata option is ignored for 64-bit processes. 3 Malloc enhancements The following sections discuss new ways for applications to access memory. 3 as part of the service stream and it may not be well known. A single free memory pool (or heap) is provided, by default, by malloc. 3, the capability to enable the use of multiple heaps of free memory was introduced, which reduces thread contention for access to memory.