qemu:moved into main repo for pisi 2.0

hardware/virtualization/qemu/comar/ksm-service.py

@@ -0,0 +1,55 @@
+from comar.service import *
+import os
+
+serviceType = "local"
+serviceDefault = "conditional"
+serviceDesc = _({"en": "Kernel Samepage Merging",
+                 "tr": "Kernel Aynısayfa Birleştirici"})
+serviceConf = "ksm"
+
+SYSFS_KSM_RUN = "/sys/kernel/mm/ksm/run"
+SYSFS_KSM_MAX_KERNEL_PAGES = "/sys/kernel/mm/ksm/max_kernel_pages"
+
+# unless KSM_MAX_KERNEL_PAGES is set, let ksm munch up to half of total memory.
+def default_max_kernel_pages():
+    max_kernel_pages = config.get("KSM_MAX_KERNEL_PAGES", "")
+    if max_kernel_pages != "":
+        return max_kernel_pages
+
+    total = 0
+    with open("/proc/meminfo", "r") as _meminfo:
+        for line in _meminfo.readlines():
+            if "MemTotal" in line:
+                total = int(line.split()[-2])
+                break
+
+    pagesize = int(os.sysconf("SC_PAGESIZE"))
+    return (total * 1024 / pagesize / 2)
+
+@synchronized
+def start():
+    max_kernel_pages = str(default_max_kernel_pages())
+    if os.path.exists(SYSFS_KSM_MAX_KERNEL_PAGES):
+        open(SYSFS_KSM_MAX_KERNEL_PAGES, "w").write(max_kernel_pages)
+
+    open(SYSFS_KSM_RUN, "w").write("1")
+
+@synchronized
+def stop():
+    if os.path.exists(SYSFS_KSM_RUN):
+        open(SYSFS_KSM_RUN, "w").write("0")
+
+def ready():
+    status = is_on()
+    if status == "on" or (status == "conditional" and os.path.exists(SYSFS_KSM_RUN)):
+        start()
+
+def status():
+    ret = False
+    try:
+        ret = (open(SYSFS_KSM_RUN, "r").read().strip() == "1")
+    except IOError:
+        pass
+
+    return ret
+

hardware/virtualization/qemu/comar/ksmtuned-service.py

@@ -0,0 +1,27 @@
+from comar.service import *
+import os
+
+serviceType = "local"
+serviceDefault = "off"
+serviceDesc = _({"en": "Kernel Samepage Merging Tuned Daemon",
+                 "tr": "Kernel Aynısayfa Birleştirici İnce Ayarlı Sunucu"})
+
+serviceConf = "ksm"
+
+ksmtuned = "/usr/sbin/ksmtuned"
+ksmtunedpid = "/run/ksmtune.pid"
+
+@synchronized
+def start():
+    startService(command=ksmtuned,
+                 pidfile=ksmtunedpid,
+                 donotify=True)
+
+@synchronized
+def stop():
+    stopService(pidfile=ksmtunedpid,
+                donotify=True)
+
+def status():
+    return isServiceRunning(ksmtunedpid)
+